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 70 sec, what does df denote, and what is its value?
what does df denote?
a. the sample size
b. the test statistic
c. the sample standard deviation
d. the number of degrees of freedom
the value of df is
(type an integer or a decimal. do not round.)

Explanation:

In hypothesis testing (specifically in t - tests), the notation \(df\) is a standard abbreviation for the number of 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:

D. The number of degrees of freedom
The value of \(df\) is \(35\)