question 1: A researcher with the Department of Education followed a cohort of students...? question 2: A researcher with the Department of Education..?
researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research was to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the results of his study, Complete parts a) through e) below. Click here to view the sample data. Click here to view Student's t-distribution table. Y C. The samples can be reasonably assumed to be random. X D. The population is given to be normally distributed. i sample data E. .The sample sizes are not more than 5% of the population. c) Does the evidence suggest that community college transfer students t thesis test. Community No Transfer Determine the null and alternative hypotheses. College Transfer 275 1172 O A. Ho Hcommunity college Hno transfer: 1 Hcommunity college Hno tr Sample mean time to 5.44 4.49 graduate, in years O B. Ho- Hcommunity college ~ Hno transfer: H1 Hcommunity college Sample standard .152 1.018 deviation time to O.C. Ho Hcommunity college =no transfer H4-Hcommunity college * Hno tr graduate, in years D. Ho- Hcommunity college = Hno transfer : H1 Hcommunity college * Hno tr Print Done Determine the test statistic. 1= (Round to two decimal places as needed,) Determine the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to three decimal places as needed.) A. The critical value is OB. The lower critical value is . The upper critical value is Should the hypothesis be rejected? the null hypothesis. The evidence suggest that community college transfer students take longer to attain a bachelor's degree. d) Construct a 95% confidence interval for Hcommunity college - Hno transfer to approximate the mean additional time it takes to complete a bachelor's degree if you begin in community college. The confidence interval is the range from (Round to three decimal places as needed.) Question 1 e) Do the results of parts c) and d) imply that community college causes you to take extra time to earn a bachelor's degree? A researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research was to determine whether students who first attended community college took longer to attain a bachelor's degree than those an those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the results of his study, Complete parts a) through e) below. Click the icon to view the sample data C. The samples can be reasonably Sample Data X D. The samples are independent. YE. The sample sizes are large (both C) Does the evidence suggest that comm Community No Transfer ance. Perform a hypothesis test. Determine the null and alternative hypoth College Transfer 253 1120 A. Ho- Hcommunity college Hno transfer Sample mean time to 4 24 graduate, in years B. Ho- Hcommunity college = Hno transfer Sample standard 139 1:009 deviation time to C. Ho Hcommunity college - Ino transf graduate, in years O D. Ho Hcommunity college * Hno transfer Print Done Determine the test statistic t=(Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to three decimal places as needed.) Question 2 The critical value is B. The lower critical value is The upper critical value is Should the hypothesis be rejected? the null hypothesis. The evidence suggest that community college tra d) Construct a 95% confidence interval for community college - Pro transfer to approxin lor's degree if you begin in community college. The confidence interval is the range from (Round to three decimal places as needed.) e) Do the results of parts c) and d) imply that community college causes you to take extra time to earn a bachelor's degree
