# Question

An article in a trade journal reports that nationwide 28% of liquor purchases are made by women. If B & B Liquor’s proportion of sales to women is significantly different from the national norm, the owners are considering redesigning B & B’s advertising. A random sample of 100 customers is selected resulting in 24 women and 76 men.

Does the sample data provide evidence to conclude that less than 28% of B&B’s customers are women (using a = .01)? Use the hypothesis testing procedure outlined below.

a. Formulate the null and alternative hypotheses.

b. State the level of significance.

c. Find the critical value (or values), and clearly show the rejection and non-rejection regions.

d. Compute the test statistic.

e. Decide whether you can reject Ho and accept Ha or not.

f. Explain and interpret your conclusion in part e. What does this mean?

g. Find the observed p-value for the hypothesis test and interpret this value. What does this mean?

h. Does this sample data provide evidence (with a = .01), that less than 28% of B & B’s customers are women?

Does the sample data provide evidence to conclude that less than 28% of B&B’s customers are women (using a = .01)? Use the hypothesis testing procedure outlined below.

a. Formulate the null and alternative hypotheses.

b. State the level of significance.

c. Find the critical value (or values), and clearly show the rejection and non-rejection regions.

d. Compute the test statistic.

e. Decide whether you can reject Ho and accept Ha or not.

f. Explain and interpret your conclusion in part e. What does this mean?

g. Find the observed p-value for the hypothesis test and interpret this value. What does this mean?

h. Does this sample data provide evidence (with a = .01), that less than 28% of B & B’s customers are women?

## Answer to relevant Questions

The Action Paper Company employs a human resources manager who is given responsibility for employee benefits. There is a question about the mean annual dental expense per employee. The manager selects a random sample of 49 ...a) Calculate the probability of a type ii error for the following hypotheses when µ = 37: ho: µ = 40 h1: µ < 40 The significance level is 5%, the population standard deviation is 5, and the sample size is 25. b) ...As VP for operations at Brian Normoyle Engineering, you must decide which product design, A or B, has the higher reliability. B is designed with backup units for components R3 and R4. What is the reliability of each ...A real estate Association in a suburban community would like to study the relationship between the size of a single-family house (as measured by number of rooms) and the selling price of the house (in thousands of dollars). ...You have been asked to assess the bond bellow:Bond Details Par Value €100 Coupon Coupon (1): €8 (2012-2017) Coupon (2): €10 (2018-∞) Yield 7.5% (2012-2015) 9.2% (2016-2019) You are required to address the following ...Post your question

0