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In: Statistics and Probability

State the null and alternative hypotheses and mark the claim: A. The average income of nurses...

State the null and alternative hypotheses and mark the claim:

A. The average income of nurses is at least $38725

B. The average electric bill is smaller than $68.32

C. The average price of a cd is $22.95

Solutions

Expert Solution

solution

(A)

this is the right tailed test .  

The null and alternative hypothesis is ,

H0 :   = 38725

Ha : > 38725

(B)this is the left tailed test .  

The null and alternative hypothesis is ,

H0 :   = 68.32

Ha : < 68.32

(C)

this is the two tailed test .  

The null and alternative hypothesis is ,

H0 :   = 22.95

Ha :     22.95

orchestra answered 2 years ago
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