Multitasking in the ClassroomHow good are you at multitasking? Probably not as good as you think! Exercise 4.72 introduces a study in which a professor taught two sections of the same course with identical material, except that students were allowed to use electronic devices (laptops and cellphones) as they wished for half of the classes and were not allowed to use them for the other half of the classes. At the end of the semester, grades on the not allowed/allowed portions of the final exam were compared, and the results are shown in the table below.

Test to see if these experimental results provide evidence that mean grades are higher on material learned when electronic devices are not allowed as distractions in class. Show all details of the test. (Let Group 1 represent devices not allowed and Group 2 represent devices allowed.)

Part 1

Correct answer icon

Your answer is correct.

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Hint

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Part 2

Find test statistic and p-value.

Test statistic =(round to three decimal places)

p-value =(round to three decimal places)

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Part 3

What do you conclude?

Do not rejectH0. We do not have evidence that mean grades are higher when devices are not allowed.

RejectH0. We have evidence that mean grades are higher when devices are not allowed.

Do not rejectH0. We have evidence that mean grades are higher when devices are not allowed.

RejectH0. We do not have evidence that mean grades are higher when devices are not allowed.

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please show all calculations with the formulas used