Question
You may need to use the appropriatetechnologyto answer this question. The grade point averages of 352 students who completed a college course in financial accounting
You may need to use the appropriatetechnologyto answer this question.
The grade point averages of 352 students who completed a college course in financial accounting have a standard deviation of0.940. The grade point averages of73 studentswho dropped out of the same course have a standard deviation of0.795. Do the data indicate a difference between the variances of grade point averages for students who completed a financial accounting course and students who dropped out? Use a 0.05 level of significance.Note:F0.025
with 351 and72 degreesof freedom is 1.47.
State the null and alternative hypotheses.
H0:12=22
Ha:1222
H0:12>22
Ha:1222
H0:1222
Ha:12>22
H0:1222
Ha:12=22
Find the value of the test statistic. (Round your answer to two decimal places.)
State the critical values for the rejection rule. (Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.)
test statistictest statistic
State your conclusion.
Do not rejectH0. We cannot conclude that students who complete the course and students who drop out have different variances of grade point averages.
RejectH0. We can conclude that students who complete the course and students who drop out have different variances of grade point averages.
Do not rejectH0. We can conclude that students who complete the course and students who drop out have different variances of grade point averages.
RejectH0. We cannot conclude that students who complete the course and students who drop out have different variances of grade point averages.
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