Question

What equations and statements should be used for this problem?
Do I select any hypothesis I want? How do I phrase the hypothesis
and write the equations? If I have data, what makes the hypothesis
true or false?

1) Conduct hypothesis test by comparing monthly average between the two year

2) Within each year, run a appropriate hypothesis comparing June and August.

Answer #1

Solution1:

Let us assume that you have data for sales

Null hypothesis :

The true avearge sales for two years are equal .let us assume 2017 and 2018

Alternative Hypothesis:

choose level of significance as 0.05 that is alpha=0.05

Conduct t test for difference in means.

Obtain t statistic and p value .

decsion rule is

if p<0.05 reject Ho

if p>0.05 Do not reject H0

basing on this we can accept or reject claim

Solution2:

For this comapre monthly sales

ex

H0:

H1:

choose level of significance as 0.05 that is alpha=0.05

Conduct t test for difference in means.

Obtain t statistic and p value .

decsion rule is

if p<0.05 reject Ho

if p>0.05 Do not reject H0

basing on this we can support or reject the claim

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