Question

Establish the requirement for any of the situations presented below. Students can only repeat the same situation 2 times. If 2 other students have already analyzed the same situation, then it is eliminated for a third student to choose.

The answer must follow the following format:

Situation # 3: Answer to the request and why.

4. A hypothesis test is performed to test whether the average diameter of a run of parts is 0.02 inches. Based on the above, establish which is the alternative hypothesis for the test. Explain your answer.

5. The confidence interval of the diameter of a piece is between the values of 0.015 and 0.025. State whether or not this interval supports the null hypothesis (Ho: μ = 0). Explain your answer.You are going to start making a new product in a company. No production data.

1. Data are taken to test the hypotheses that the proportion of male voters is similar to the proportion of female voters. Establish what would be the Null Hypothesis that we want to test and explain why.

Answer 1

4.

Let the population mean diameter of the run of parts be . Hence the null and the alternative hypotheses is given by

5.

Given the null hypothesis is

The confidence interval is given as (0.015,0.025)

As the value 0 does not lie within the confidence interval, this interval does not support the null hypothesis and thus we reject the null hypothesis in this case.

1.

Let the population proportion of male voters be denoted by p1 and the population proportion of female voters be denoted by p2

Thus in this case, we are to test

If the two proportions are to be tested similar, the null hypothesis should be two.sided.

Hopefully this will help you. In case of any query, do comment. If you are satisfied with the answer, give it a like. Thanks.