The results below are based on data collected on campus as part of a student project for an introductory statistics class at UF. If there is more than one group/treatment, the first group mentioned is group 1.

Data was collected to compare theaverage number of text messages sent during a certain time period by Male and Female residents of Hume Hall (Honors dorm). One of the students collecting the data was an RA for Hume Hall and had access to the list of residents. The p-value was 0.77, and the 95%confidence interval was ( -14.89, 20.01).

This problem is about [ Select ] ["dependent proportions", "two independent means", "dependent means", "one proportion", "one mean", "two independent proportions"] .

The sign of the alternative hypothesis should be [ Select ] ["not =", "=", ">", "<"] .

Based on the p-value we can [ Select ] ["Reject the Null Hypothesis", "not Reject the Alternative Hypothesis", "Accept the Alternative Hypothesis", "Accept the Null Hypothesis", "Reject the Alternative Hypothesis", "not Reject the Null Hypothesis"] at alpha = 0.05.

At which alpha levels could we Reject Ho? [ Select ] ["none of the usual alpha levels", "0.01 and 0.05", "all of the usual alpha levels", "0.10 and 0.05"]

Are the results statistically significant at alpha=0.01? [ Select ] ["Yes.", "No."]

We have [ Select ] ["very strong evidence", "pretty strong evidence", "some evidence", "not enough evidence"] to say that there is a difference in the average number of text messages sent by Male and Female Hume Hall residents.

We are 95% confident that the average number of text messages sent by Male Hume Hall residentswasbetween [ Select ] ["14.89 and 20.01 smaller", "20.01 smaller and 14.89 higher", "14.89 smaller and 20.01 higher", "14.89 and 20.01 higher"] than the average sent by Females.

The results of the confidence interval and significance test at alpha=0.05 [ Select ] ["do not agree because the test is one sided.", "agree", "do not agree because the test is two sided."] .

We need to assume the sample was randomly selected because we are making inferences about [ Select ] ["one group", "an estimator", "an unknown parameter", "an unknown statistic", "means", "proportions", "two groups"] .

The population of interest is [ Select ] ["all college students", "all UF students", "all Hume Hall residents", "all students for whom data was collected"] .

For the students collecting the data, it would be [ Select ] ["fairly easy", "very difficult"] to select a random sample from this population.

Students collecting the data should strive for [ Select ] ["a population size of at least 30 per group", "a sample size of at least 30 per group", "at least 15 successes and 15 failures per group in the population", "at least 15 successes and 15 failures per group in the sample"] .