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Fifteen females were recorded on their reaction time to a stimulus. The 95% confidence interval for the population mean was (14.56, 18.75) seconds. What do we know from this confidence interval?

For Ho:p = 0.60 versus Ha: p does not equal 0.60, when the test statistic equals 1.54, what is the p-value?

Suppose that one of the UF softball players had a 0.34 probability of getting a hit each time at bat. Suppose that there were a total of 60 at-bats. What would be the mean and standard error of the sampling distribution of the sample proportion of hits?

According to the Georgia department of Labor, as of May 2011, the average salary of all people living in Atlanta was 55,733 dollars. Someone who didn’t know this took a sample of 50 working people in Atlanta and averaged their salaries. For the 50 people, the average salary was 56,771 dollars. Match the following terms with their amounts

If n is decreased, what happens to the standard error of the sampling distribution of the sample mean?

The general social survey asked participants (randomly selected Americans) in 2010 how many hours they worked. The 95% confidence interval for the population mean hours spent working was (40.36, 42.36). Finish the following sentence.  “We are 95% confident that  . . .”

Suppose that one of the UF softball players had a 0.39 probability of getting a hit each time at bat. Suppose that there were a total of 60 at-bats. What would be the mean and standard error of the sampling distribution of the sample proportion of hits?

The average salary for an exercise specialist is $41,000. The standard deviation is about $3000. Suppose that a sample of 18 was taken, what is the approximate distribution of the sampling distribution of the sample mean?

Martin and Halverson (1983) conducted an experiment in which 5- and 6-year-old children saw pictures of boys and girls doing stereotype-consistent activities and stereotype-inconsistent ones. Which of the following results was found when they tested the children’s memory for the pictures a week later?

In a three-generational study of college students, their mothers, and their grandmothers, Morgan (1998) found that a majority