Question

thirty - six different video games showing alcohol use were observed. the duration times of alcohol use (in seconds) were recorded. when using this sample for a t test of the claim that the population mean is greater than 85 sec, what does df denote, and what is its value?
what does df denote?
○ a. the number of degrees of freedom
○ b. the test statistic
○ c. the sample size
○ d. the sample standard deviation
the value of df is □.
(type an integer or a decimal. do not round.)

Explanation:

In a t - test, df stands for degrees of freedom. The formula for degrees of freedom in a one - sample t - test is \(df=n - 1\), where \(n\) is the sample size. Here, the sample size \(n = 36\).

Answer:

A. The number of degrees of freedom
The value of \(df\) is \(36-1=35\)