Pleas provide a clear, easy to follow, legible answer!!! Thanks 15. For the Unit

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Pleas provide a clear, easy to follow, legible answer!!!

Thanks 15. For the United States, of 64 households is a southern state shoepe mean of -$32he popalation standard deviation is NOT KNOWN and a sample standard deviation of s = . Use a 0.01 level of significance to test , the average monthly internet bill is $33 per household. A sample Ho: =33 where is the average monthly internet bill in the southern state. (a) [2 PTs] Compute the test statistic (b) [2 PTS] Compute the critical values. (c) [1 PT] What is your conclusion based on the critical value?

Explanation / Answer

a) std error of mean =std deviation/(n)1/2 =5/(64)1/2 =0.625

for test statistic t=(X-mean)/std error =(32-33)/0.625=-1.6

b) for (n-1=63 ) degree of freedom and 0.01 level; critical value of t =2.656

c) as test statistic does not fall into critical region ; tehrefore we can not reject null hypothesis

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