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Questions tagged [excel]

Excel is a commercial spreadsheet program created by Microsoft.

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18 views

Correlation between Likert scale question and binary question?

I am writing a report and I need to find correlation between question: how much do you trust banks (from 1-I dont trust them at all and 5-i trust them completely) and question: are you a member of ...
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1answer
71 views

Cross sectional regression in excel [closed]

Hi Can someone please let me know whether cross sectional regression is possible in Excel? I'm trying to evaluate CAPM from MacBeth regression. I need to run the cross sectional regression, but ...
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2answers
17 views

How can I determine standard deviation in excel given the probability that values will fall within a defined range?

Assuming a normal distribution with a mean of zero, if I am told that 68.2% of the population values are within +/- 4.7, I can conclude that the standard deviation is also 4.7. But what if I am told ...
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0answers
17 views

Can I directly obtain standard deviation using an Excel formula knowing only median error rate, but no sample size? [closed]

I have access to statistical data with a median error rate of 4.7%. This means half of values fall within an error rate of 4.7%, and half fall outside this range. The sample size is not provided, but ...
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1answer
11 views

index and base year

I am creating a league table of a group of people with the aim to track their performance on 5 KPIs using indices. Base month value is set to 100. Out of 5 KPIs, an increase in 3 indices means good ...
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0answers
21 views

Transforming raw scores to scaled scores using a proprietary scale

I'm working with questionaire answers from the Child Behavior Checklist (CBCL) for my master's thesis. The 113 items on the questionaire are organized into several subscales for different areas of ...
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0answers
15 views

Testing forecast accuracy in Excel [duplicate]

I'm looking for some advice on how to determine how accurate a forecast is. Basically, what I have is 23 years of competitive results for a particular sport (10000+ matches). The matches are broken ...
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0answers
29 views

Interpretation of linear regression intercept

I am aware this is a very basic question. I just need clarification (for my sanity) For this regression: Is it true to say that: The regression outturn records the intercept as significant. (If ...
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1answer
31 views

Statistical analysis, repeated measures t test or anova? Trouble with input when running any test

I've tried using google sheets/excel, but I can't figure how to run a 2 factor without repetition ANOVA (if that's the appropriate test for this data set). I think it's the way I set the spreadsheet ...
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4answers
232 views

How to: Analysing 5-Point Likert Scale with ANOVA

I am very confused since I could not find an understandable answer for it: I must analyse my Likert Scale data with ANOVA to get the significance (using the ANOVA is the requirement...). I have to ...
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0answers
9 views

Spreadsheet segmentation

I work on an spreadsheet segmentation/ml-based-parsing project. Input spreadsheets vary in shape and formatting to some extend. Goal is to transform any given spreadsheet into normalized database ...
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2answers
39 views

How would you go about modelling a sport with a fixed maximum score line (e.g. volleyball or tennis?)

In short, I don't have a great maths background but have always mucked about with modelling sports and making predictions (as I enjoy it). I have always used the Hal Stern "The Probability of Winning ...
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26 views

Determine relative and absolute concentration in Excel

I have 3 data sets in Excel about number of stores, amount of gross revenues of some retailers from the past 8 years. I need to determine relative and absolute concentration of data. I created a ...
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1answer
120 views

How does Excel interpolate / imputate missing values in time-series when fitting a line to a plot?

I have a scatter plot in Excel (upper part of the screenshot) of time-series data. In-between the values that I plot (to the left), are some missings. I fit a (linear) line to those values and display ...
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0answers
8 views

Weighted Standard Deviation in Excel [duplicate]

I have a dataset in excel that looks like this: ...
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1answer
268 views

Different regression coefficients in R and Excel

Asking a separate question because whilst this has been answered for polynomial regression the solution doesn't work for me. I'm performing a simple linear regression. Both R and Excel give the same ...
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1answer
53 views

Monte Carlo simulation--Have I applied Bernoulli distribution properly? [closed]

I am trying to run a monte carlo simulation and I just wanted to make sure that I set it up properly. A salesman visits 100 different homes. Someone answers the door 80% of the time. Of that ...
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0answers
36 views

Find correlation between names and score

I'm new to data mining and hope you can help me with my task :) First some details about my (input data) I've got an excel table with the following structure: ...
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1answer
21 views

Assessing pre-post survey data with change scores?

I have about 50 pre & post-surveys for an intervention. I am limited to using excel and was told to only calculate the change scores. For example: ...
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0answers
800 views

Standard Deviation of Discrete Random Variables in Excel?

I am looking for the Standard Deviation of the Discrete Random variable. I understand how to calculate it by hand but when I use the excel STDDEV function, I am getting a different answer. Is there a ...
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1answer
69 views

read.csv() columns NULL [closed]

This is a very simple question I hope, but just can't seem to solve myself. I'm trying to read a .csv file of integers into R using read.csv(), however for analysis reasons I need to convert all the ...
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1answer
28 views

Terminology Question (ANOVA/t-test) - With and Without Replication?

Coming from a Psychology background, I have always been taught statistics terms as "within subjects" and "between subjects". Now using excel I see they are using the terms Anova - 2 Factor With ...
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1answer
44 views

Calculating regression weights from a covariance matrix [duplicate]

My starting point is a covariance matrix (Not raw data) and I want to calculate the regression weights. I may have as many as 6-8 independent variables and 1 dependent variable so looking for a ...
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70 views

For a histogram, is there any standard rule about how large the min and max bin should be (underflow bin and overflow bin)?

Working with several large datasets in excel, about N=900. I would like to divide the data into a number of categories corresponding to low, med, high etc. for this biological variable. Histograms ...
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0answers
20 views

How to represent local significant differences between curves

I want to compare some curves to a 'normality corridor', and I would like to show in what regions (x values) the difference is significant.Take the example below, where I want to compare the dashed ...
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1answer
46 views

ANOVA & Sums of Squares in Excel and R

In this simple dataset, I have bird populations from three watersheds. I am completing an ANOVA by hand and in R and comparing the outputs. ...
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1answer
55 views

A proper function for nonlinear regression with 3 predictors

There are three independent variables in my experimental work, namely flow rate (0.5 ≤ Q ≤ 9 where ΔQ = 0.5), particle size (a = {6, 10, 15}), and a geometric parameter (AR = {AR1, AR2, AR3, AR4}). ...
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1answer
122 views

How to calculate statistical significance of a difference between two groups?

I have two groups A and B. Each group involves some number of users. For example, let's imagine that the group A has 2000 unique users on Monday, while the group B has 2002 users on the same day. For ...
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0answers
24 views

Probabilities for a game of chance similar to card game War

For homework, the kid has developed a game of chance but we need to define the probabilities associated with this. It's a simple game. Two players, each has a standard deck of playing cards. Turns go ...
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0answers
14 views

Basic way to find out relationships and correlations / mediators

Currently I am looking for a very basic way to analyze relationships in a data set which contains nominal and ordinal data. Mainly I want to investigate, whether two groups, defined by a dichotomous ...
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0answers
42 views

Can binary logistic regression be performed without a reference/baseline category?

I have different independent categorical variables with more than two categories, dependent variable is binomial. How do I compare the effect of these independent variables w.r.t an absolute reference ...
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0answers
411 views

Exponential double decay curve fitting in Excel

Please refer the attached image. I tried to fit the curve with an double decay exponential function in excel using GRG nonlinear solving method. Every time I run the solver, I get the result stating ...
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1answer
1k views

Excel Regression - Training and Test Data

I am curious about the Excel regression function and evaluation of training and test data. Unlike using a program like R or Python where you state the values for your test and training data, Excel ...
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1answer
112 views

What is a good model to forecast a single variable?

Let's say I have the values of a variable x for a time period of 15 years. What is a good statistical model to find the values of this variable for the next 10 years? How good is excel's forecast ...
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8answers
12k views

Line of best fit does not look like a good fit. Why?

Have a look at this Excel graph: The 'common sense' line-of-best-fit would appear be an almost vertical line straight through the center of the points (edited by hand in red). However the linear ...
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1answer
27 views

Make value ranges to guess

Hi I have excel sheet with following like data of shoppers and money they used: ...
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2answers
816 views

How can I plot an ROC curve? [closed]

Given this simple data: How can I plot an ROC curve in Microsoft Excel? Step by step instructions would be very helpful. I know my TPR is ~87% and my FPR is ~13%. How do I know where to set the ...
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1answer
52 views

Office Desk Rota Assignment problem

This is not a home work and the question is not related to studies (I am not a student). I have to do the weekly desk rota at the office and thought this forum might help with suggestions. My problem ...
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0answers
41 views

Which statistical test should I use to compare land use type and species abundance?

I have abundance data for a species of bird and data on land use type in the areas where the bird data was collected. I want to test whether land use type affects bird abundance but I don't know what ...
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1answer
36 views

Analysis of a dataset including dichotomial, ordinal and % data

I'm working on a dataset which is giving me trouble. I have 200 samples (Sample 1, Sample 2...). An example dataset (limited to 15 samples) is here. My dataset is structured with the following ...
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1answer
132 views

Statistic problem to be resolved on Excel (or VBA) [closed]

I have a stat problem and I am not sure it can be resolved; I am not good in statistic but maybe someone can help me: I need to create two numbers: $v_1$ and $v_2$ with Excel or VBA. I want both ...
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1answer
59 views

Sample Size Estimation for Two Sample T-Test (Excel)

I'm trying to work out how to calculate the necessary sample size for a two sample t-test using excel and need some help. I don't think I am able to upload an excel attachment, so I will write out ...
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1answer
32 views

What type of distribution to use?

This is my first post here. I am making a financial model in excel of the feasibility of a project. Herefore I need to make some assumptions. One of those assumptions would be the fuel price and how ...
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1answer
749 views

Forecasting Monthly Timeseries Data in Excel

I am trying to create a forecast using a monthly timeseries data set of marketing expenses for a fictional company. The data looks something like this: Using linear regression to forecast future ...
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3answers
62 views

How to isolate price effect in time series?

Here is what I have: Excel Yearly energy prices by state from 2002 (generally increasing, generally peaked a couple of years ago) Yearly energy consumption by state by industry from 2008 (about 700 ...
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0answers
34 views

Examining Trends in Neighborhood Data using Excel

I am tasked with a project that asks me to examine trends by neighborhood of various determinants of health (crime rate, poverty rate, unemployment rate, housing) and different health outcomes (infant ...
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1answer
46 views

Calculating t-value for regression coefficients

I am estimating a nonlinear model as follows: $$Y=B_0+B_1X_1+B_2X_2+B_3aX_3^{1-b}+B_4$$ I have estimated $B_0$, $B_1$, $B_2$, $B_3$, $B_4$, $a$, and $b$ using least squares in Excel (minimizing SSR ...
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2answers
774 views

Exponential regression trendline does not match data

I'm attempting to generate an exponential regression equation using Excel 2010. I plan to use the equation to predict the future condition of roads. I've mocked up a simple chart in Excel using the ...
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1answer
82 views

A/B testing of newsletter in R or Excel

I have conducted A/B test on Newsletter send outs regarding title length over 10 week period. One group of people during those weeks always got long title, other short version of title. Newsletters ...
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2answers
26 views

Having Two Sets of Frequency Results, How Do I Check if They are Significantly Different?

I modeled a game using a program and it generated two sets of data that look similar to this after iterating the game 10 million times: A: ...