Question

1) A professor at a large university believes that students take an average of 15 credit...

1) A professor at a large university believes that students take an average of 15 credit hours per term. A random sample of 24 students in her class of 250 students reported the following number of credit hours that they were taking:  (HINT: Put into L1 and then choose data when constructing the test.)

12

13

14

14

15

15

15

16

16

16

16

16

17

17

17

18

18

18

18

19

19

19

20

21

Does this sample indicate that students are taking more credit hours than the professor believes? Test an appropriate hypothesis and state your conclusion.

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Answer #1

here we use t test for me

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