Question: Type numbers in the boxes. 10 points According to a Pew Research Center study, in May 2011, 38% of all American adults had a

Type numbers in the boxes. 10 points According to a Pew Research Center study, in May 2011, 38% of all American adults had a smart phone (one which the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 298 community college students at random and finds that 138 of them have a smart phone. Then in testing the hypotheses: = Ho: p 0.38 versus Ha: p > 0.38, what is the test statistic? z= (Please round your answer to two decimal places.)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

How do organizations determine the appropriate Operating Model for their unique strategy? How do the different Operating Models impact the supply chain in terms of inventory, responsiveness to...

If a firm increases its use of both operating and financialleverage, then you should expect the firm's: a. asset beta to exceed its equity beta. b. beta of debt to exceed 1.0. c. beta to remain...

Managed funds are often categorized by the type of investments purchased by the fund. These include capital stable funds, balanced growth funds, and managed capital growth funds. For each of these...

For each polynomial function, find (a) (-1), (b) (2), and (c) (0). f(x) = 2x - 4x + 1

Hunter, Folgers, and Tulip have been partners while sharing net income and loss in a 5:3:2 ratio. On January 31, the date Tulip retires from the partnership, the equities of the partners are Hunter,...

Have you ever traveled outside the United States? If you have, identify some of the differences in values, behavior, and consumption patterns that you noted between people in a country you visited...

6.44 Find the normal approximation to P(355x 360) for a binomial probability distribution with n 400 and p=0.9.

A builder has located a piece of property that she would like to buy and eventually build on. The land is currently zoned for four homes per acre, but she is planning to request new zoning. What she...

Polaski Company manufactures and sells a single product called a Ret. Operating at capacity, the company can produce and sell 48,000 Rets per year. Costs associated with this level of production and...

Totally Chemical is considering an investment decision project in which the organization expands into the trucking business. Totally Chemical wants to begin this investment decision project by buying...

While out on bail pending her trial for drunk driving, Glenda drove to the other end of town. She drank four beers at the Sand Bar and two at the High Bar, establishments that are a kilometre apart....

Simple expected value calculations are at the heart of Kahneman and Tversky's prospect theory. Calculate the expected value of the following gamble. You are playing the following game: draw a card...

From the following data prepare a statement of cost of goods manufactured and cost of goods sold of Popular Stoves Manufacturing Co. for the year 2011: Rs. Stock of materials on 1-1-201135,000 Stock...

Reflect on your learning experience and course resources and answering the following. Note that this is not a research project and would expect either your personal thoughts or SYST 3 0 0 2...

1. What does your company produce? 2. Analyze the trends in sales, cost of goods sold, gross profit, and operating income for your manufacturing company. Prepare a trend analysis for percentage...

1. Find and describe a real-world example of a method for enhancing the bond strength between different phases of a composite. Include the materials system, the details of the technique being used...

Un proyecto tiene flujos de efectivo anuales estimados de $90 000 durante 3 aos y se estima que costar $250 000. Suponga una tasa de rendimiento mnima aceptable del 10%. Valor presente de $1 a inters...

Suppose the S&P 500 futures price is 1000, = 30%, r = 5%, = 5%, T = 1, and n = 3. a. What are the prices of European calls and puts for K = $1000? Why do you find the prices to be equal? b. What...

15. A researcher has conducted a study on reaction times with 20 participants in each of two conditions. She finds that the variance for the first condition is 2 seconds and for the second condition...

12. If we reject the null hypothesis when it is, in fact, true then we have: (a) Made a Type I error (b) Made a Type II error (c) Made scientific progress (d) Both (b) and (c) above

13. Which of the following are the assumptions underlying the use of parametric tests? (a) The data should be normally distributed (b) The samples being tested should have approximately equal...