Eighteen 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 82 sec, what does df denote, and what is its value? What does df denote? A. The number of degrees of freedom B. The sample size C. The test statistic D. The sample standard deviation The value of df is ___. (Type an integer or a decimal. Do not round.)
Eighteen 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 82 sec, what does df denote, and what is its value? What does df denote? A. The number of degrees of freedom B. The sample size C. The test statistic D. The sample standard deviation The value of df is ___. (Type an integer or a decimal. Do not round.)
Eighteen 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 82 sec, what does df denote, and what is its value? What does df denote? A. The number of degrees of freedom B. The sample size C. The test statistic D. The sample standard deviation The value of df is ___. (Type an integer or a decimal. Do not round.)
Eighteen 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
82 sec, what does df denote, and what is its value?
What does df denote?
A. The number of degrees of freedom
B. The sample size
C. The test statistic
D. The sample standard deviation
The value of df is ___. (Type an integer or a decimal. Do not round.)
Transcribed Image Text:Eighteen different video games showing alcohol use were observed. The duration times of alcohol use (in seconds) were recorded. When using this sample for at test of the claim that the population mean is greater than 82 sec,
what does df denote, and what is its value?
What does df denote?
O A. The number of degrees of freedom
O B. The sample size
O C. The test statistic
O D. The sample standard deviation
The value of df is
(Type an integer or a decimal. Do not round.)
Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.
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