Examlex
It is believed that the SAT scores for students entering two state universities may have different standard deviations.Specifically,it is believed that the standard deviation at University A is greater than the standard deviation at University B.To test this using an alpha = 0.05 level,a sample of 14 student SAT scores from University A was selected and a sample of 8 SAT scores from University B was selected.The following sample results were observed: Based on this information,what is the value of the test statistic?
Critical Value
A point on the scale of the test statistic beyond which we reject the null hypothesis; it marks the threshold of statistical significance.
P Value
The probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is correct.
Null Hypothesis
A statement proposing no significant difference or relationship between variables, serving as a default assumption to be tested against.
Independent-Samples
Refers to a comparison between groups where the participants in each group are different and do not overlap.
Q25: In determining the sample size requirement for
Q31: The values of the regression coefficients are
Q45: Construct a 98% confidence interval estimate for
Q64: The manager in charge of concessions at
Q84: Hono Golf is a manufacturer of golf
Q109: In a multiple regression model,R-square can be
Q117: Because of the complex nature of the
Q127: The probability of a Type II error
Q159: An educational organization in California is interested
Q167: The following data represent a random sample