Question

In: Statistics and Probability

The mean salary of professors in the US is $52,000.

The mean salary of professors in the US is $52,000.

The standard deviation of finishing times for runners in a marathon is at least 106 minutes.

At most 8% of college students cheat on exams.

The mean GPA of Students is less than 2.8.

Expert Solution

Solution:

1)

The mean salary of professors in the US is $52,000.

H₀ : = 52000 vs H_a : 52000

2)

The standard deviation of finishing times for runners in a marathon is at least 106 minutes.

H₀ : 106 vs H_a : < 106

3)

At most 8% of college students cheat on exams.

H₀ : p 0.08 vs H_a : p > 0.08

4)

The mean GPA of Students is less than 2.8.

H₀ : 2.8 vs H_a : < 2.8

or

H₀ : = 2.8 vs H_a : < 2.8

orchestra answered 3 years ago

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Question

The mean salary of professors in the US is $52,000.

Solutions

Expert Solution

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