Question: A random sample of 802 supermarket shoppers determined that 378 shoppers preferred generic-brand items. Test at the 10% level the null hypothesis that at least

A random sample of 802 supermarket shoppers determined that 378 shoppers preferred generic-brand items. Test at the 10% level the null hypothesis that at least one-half of all shoppers preferred genericbrand items against the alternative that the population proportion is less than one-half. Find the power of a 10%-level test if, in fact, 45% of the supermarket shoppers preferred generic brands.

Step by Step Solution

★★★★★

3.36 Rating (177 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

H 0 is rejected when ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

488-M-S-H-T (1038).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

A random sample of 10 students was asked to rate, in a blind taste test, the quality of two brands of ice cream, one reduced-sugar and one regular ice cream. Ratings were based on a scale of 1 (poor)...

A random sample of 10 houses heated with natural gas in a particular area, is selected, and the amount of gas (in therms) used during the month of January is determined for each house. The resulting...

A random sample of 10 stock market mutual funds was taken. Suppose that rates of returns on the population of all stock market mutual funds follow a normal distribution. a. The probability is 0.10...

A random sample of 802 supermarket shoppers determined that 378 shoppers preferred generic-brand items. Test at the 10% level the null hypothesis that at least one-half of all shoppers preferred...

. 1.According to a survey, Bangladeshi youth watched television each weekday for an average of 145 minutes in 2015.Suppose that this result is true for 2015 population of all young adults. A recent...

Q11. The accounts of a corporation show that, on average, accounts payable are $125.32. An auditor checked a random sample of 16 of these accounts . The sample mean was $131.78 and the sample...

Possible Multiple Choice Questions for the Exam. Focus on the topics discussed in class. Chapter 1 Multiple Choice Identify the choice that best completes the statement or answers the question. ____...

CHAPTER 9 Hypothesis Tests CONTENTS 9.4 POPULATION MEAN: UNKNOWN One-Tailed Test Two-Tailed Test Summary and Practical Advice 9.5 POPULATION PROPORTION Summary 9.6 HYPOTHESIS TESTING AND DECISION...

market1234 1. What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 70%% of the Items purchased were on sale or purchased...

t6 the decision rule is as follows: -P reject H, 19.10) PI-P 3. To test the null hypothesis HP-P against the two-sided alternative H:P-P u56 the decision rule is as follows: P reject Het 19.111...

Assuming a rate of 10% annually, find the FV of $1000 after 5 years.

Create a stem-and-leaf display for the ADDSC score in Add.dat.

SciDAVis sometimes gives a negative value for the natural frequency. Why is that? ( hint: look at the function used ) a ^ 2 / ( sqrt ( ( a ^ 2 - x ^ 2 ) ^ 2 + b ^ 2 * x ^ 2 ) )

Gaining visibility for your products can be expensive, and television advertising during the Super Bowl is a good example, with a cost of nearly $2 million for a 30-second message. This high cost is...

Ace Manufacturing, Inc. purchased a new piece of manufacturing equipment at a total acquisition cost of $ 3,000,000 on January 4 of the current year. The firm estimates that the equipment has a...

Han Products manufactures 30,000 units of part S-6 each year for use on its production line. At this level of activity, the cost per unit for part S-6 is as follows: An outside supplier has offered...

A manufacturer of mp3 players is preparing to set the price on a new model. Demand is thought to depend on the price and is represented by the model D = 2,500 - 3P The accounting department estimates...

In the territory versus sales example (based on the data from Table 11.2.3), the least-squares line to predict sales based on the population of the territory was found to be Expected sales =...

Read a book on salesmanship or interview a speech professor at your school and prepare a report that identifies the key elements in making a sale. How can you apply these principles to the selling of...

A decision maker faced with four decision alternatives and four states of nature develops the following profit payoff table. The decision maker obtains information that enables the following...

In 2011, home prices and mortgage rates fell so far that in a number of cities the monthly cost of owning a home was less expensive than renting. The following data show the average asking rent for...

Consider the following time series data: Using the nave method (most recent value) as the forecast for the next week, compute the following measures of forecast accuracy: a. Mean absolute error b....

1. Which of the following comes closest to the payback of a project that requires an initial investment of $1,000 and produces cash flow of $105 beginning at the end of one year and continuing...

Your client is 3 6 years old. She wants to begin saving for retirement, with the first payment to come one year from now. She can save $ 8 , 0 0 0 per year, and you advise her to invest it in the...

To assess the market value of the firm's underlying business using valuation ratios bused on the firm's enterprise value, we commonly calculate the ratio of enterprise value to sules revenue,...