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 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. L B. The samples are independent. O c. The population is given to be normally distributed. YD. The sample sizes are not more than 5% of the population. YE. The sample sizes are large (both greater than or equal to 30). c) Does the evidence suggest that community college transfer students take longer to attain a bachelor's degree? Use an a = 0.05 level of significance. Perform a hypothesis test. Determine the null and alternative hypotheses. O A. Ho: Hcommunity college Pno transfer H1: Hoommunity college Hno transfer O B. Ho: Hcommunity college > Hno transfer H1: Hcommunity college Hno transfer O D. Ho: Hcommunity college = Pno transfer H: Hcommunity college Hno transfer Determine the test statistic. t= (Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer.
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 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. L B. The samples are independent. O c. The population is given to be normally distributed. YD. The sample sizes are not more than 5% of the population. YE. The sample sizes are large (both greater than or equal to 30). c) Does the evidence suggest that community college transfer students take longer to attain a bachelor's degree? Use an a = 0.05 level of significance. Perform a hypothesis test. Determine the null and alternative hypotheses. O A. Ho: Hcommunity college Pno transfer H1: Hoommunity college Hno transfer O B. Ho: Hcommunity college > Hno transfer H1: Hcommunity college Hno transfer O D. Ho: Hcommunity college = Pno transfer H: Hcommunity college Hno transfer Determine the test statistic. t= (Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer.
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text: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 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.
L B. The samples are independent.
O c. The population is given to be normally distributed.
YD. The sample sizes are not more than 5% of the population.
YE. The sample sizes are large (both greater than or equal to 30).
c) Does the evidence suggest that community college transfer students take longer to attain a bachelor's degree? Use an a = 0.05 level of significance. Perform a
hypothesis test. Determine the null and alternative hypotheses.
O A. Ho: Hcommunity college <Hno transfer: H1: Hcommunity college > no transfer
O B. Ho: Hcommunity college> Hno transfer: H;: Hcommunity college <Hno transfer
C C. Ho: Hcommunity college = Hno transfer: H1: Hcommunity college > Hno transfer
O D. Ho: Hcommunity college = Hno transfer: H1: Hcommunity college <Hno transfer
Determine the test statistic.
t= (Round to two decimal places as needed.)
Enter your answer in the answer box and then click Check Answer.
Transcribed Image Text:i sample data
Community
College Transfer
No Transfer
263
1178
4.49
Sample mean time to
graduate, in years
Sample standard
deviation time to
5.49
1.153
1.005
graduate, in years
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