1. Use the methodspecified to perform the hypothesis test for the population mea

Question

1.        Use the methodspecified to perform the hypothesis test for the population mean m.WeatherBug say that the mean daily high for December in a largeFlorida city is F. WFLA weather suspects that thistemperature is not accurate. A hypothesis test is performed thedetermine if the mean is actually lower than F. Assumethat the population standard deviation of s = F. A sample of meandaily temperatures for December over the past 40 years gives F.At a = 0.01, does the data provide sufficient evidence toconclude that the mean temperature is lower than F.

a. Use the critical value z0method from the normal distribution.

: Ho : µ =
Ha : Ha : µ

1.     a= .

2.     Teststatistics: and z =
and p = which is greater than Alpha

3.     P-value orcritical z0 or t0.

4.     RejectionRegion:

                                

(

7.      H0: Ho :
Ha : Ha :

8.     a=

11. RejectionRegion:

                                

Explanation / Answer

for this problem you are going to use a Z test not a T test b/c youuse t test when n is less than 30. Which is not the case here b/c nis 40. you set it up as: Ho : µ = 76 Ha : µ < 76 because it is a

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