12 - Hypothesis Test - Sigma Unknown & Proportions

1.The HHS Department has stated that the average family spends at least $2,200 on their monthly energy bill.You would like to test the HSS Departments claim so you randomly select 34 families and get a sample average of $2,025 with a standard deviation of $568.You would like to test the HHS Departments claim at the level of significance of .05.

A.What will be the alternative hypothesis?(just need to state - 1-tail -Lower, 1-tail-Upper or 2-tail -

B.What is the probability of the test statistic for this specific problem? (take into consideration if this is 1-tail or 2-tail test)

C.What conclusion will you come to? (just need to state Accept Ho or Reject Ho and Accept Ha -

D.Using the critical value approach at what critical value or values will you start rejecting the null hypothesis? (make sure you are very careful and detailed with your answer, pay attention to signs and values)

2.The US Treasury Department claims that 36.4% do not claim on their tax returns crypto/foreign bank accounts.You randomly select 210 people who have crypto/foreign bank accounts and find that 87 do not claim on their tax returns their crypto/foreign bank accounts.Conduct a hypothesis test for The US Treasury's claim.Use a level of significance of .05. (Round the sample proportion to 4 decimal places when using in the test statistic)

A.What will be the alternative hypothesis?(just need to state - 1-tail -Lower, 1-tail-Upper or 2-tail

B.What is the probability of the test statistic for this specific problem? (take into consideration if this is 1-tail or 2-tail test)

C.What conclusion will you come to? (just need to state Accept Ho or Reject Ho and Accept Ha