This SPSS/Excel tutorial explains how to use Chi Squared Goodness of fit test in Excel, SPSS and manual calculation. You may also want to read: SPSS Excel Chi Squared Test of Contingency Table Chi Squared Goodness of fit test Chi Squared Goodness of fit test is used to test hypotheses about a population proportion of nominal data. A coin flipping experiment has the chance of tossing head and tail (p=0.5), we call the experiment binomial experiment, where we only have two possibilities an...

This tutorial explains how to use Excel and SPSS to perform one sample T Test. You may also want to read: Statistics Hypothesis Testing Calculate Z Score and probability using SPSS and Excel What is T Test In statistical inference, we are interested to know whether a small sample comes from a population. To inference using sample mean, when the population standard deviation and population mean are known, we can use Z test to interference the population mean from sample mean. In rea...

This tutorial explains the concepts of hypothesis testing in statistics. Hypothesis Testing Many text book uses the court case example to explain hypothesis testing. In the U.S. (but not all countries), the court finds evidence to prove the defendant guilty, instead of proving the defendant innocent. There are two hypothesis for a court case: The defendant is guilty - when we have a theory and try to prove it, the hypothesis is called H1 The defendant is innocent -  the alternat...

This SPSS Excel tutorial explains how to calculate Covariance, Correlation and Least Squares Method in Excel and SPSS. Covariance and Correlation When we plot a scattered graph to see the relationship between two interval variables, we can see how straight a line is formed (whether the relationship is strong) and whether the relationship is positive or negative (upward or download). However, when we want to look deeper to see the strength of the relationship, we need to calculate covari...

This tutorial explains how to calculate Z Score and probability using SPSS and Excel. You may also want to read SPSS Excel one sample T Test Calculate probability of a range using Z Score Calculate Z Score and probability using SPSS and Excel In statistical inference, we are interested to know whether a small sample comes from a population. To inference using sample mean, when the population standard deviation and population mean are known, we can use Z test to interference the popula...

This tutorial explains how to calculate probability of a range using Z score (standard normal random variable). You may also want to read: Excel Range, Variance, Standard Deviation Calculate Z Score and probability using SPSS and Excel SPSS Excel one sample T Test Calculate probability of a range using Z Score Assume that a random variable is a normally distributed (a normal curve), given that we have the standard deviation and mean, we can find the probability that a certain value ran...

This SPSS tutorial explains how to import Excel into SPSS. Import Excel into SPSS It is easy to import Excel into SPSS but you should note that SPSS will automatically define each variable, some of them can be correct and some incorrect (this is very similar to Microsoft Access). In this tutorial, I will demonstrate how to import Excel into SPSS and how SPSS guesses the variable types, I will try too cover the most common scenario. Lets say we have the following table in Excel, which contai...