In a survey of 3015 U.S. adults, (80 %) say their household contains a desktop or laptop

Question:

In a survey of 3015 U.S. adults, $80 \%$ say their household contains a desktop or laptop computer.

(a) Construct a 95\% confidence interval for the proportion of U.S. adults who say their household contains a desktop or laptop computer.

(b) A researcher claims that more than $75 \%$ of U.S. adults say their household contains a desktop or laptop computer. At $\alpha=0.05$, can you support the researcher's claim? Interpret the decision in the context of the original claim.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Elementary Statistics Picturing The World

ISBN: 9781292260464

7th Global Edition

Authors: Betsy Farber, Ron Larson

See More Books

Question Posted: May 05, 2024 09:00 AM

See More Questions

In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated...
List four ways in which analytical procedures can assist the audits during the initial (risk assessment) stage of an audit.
The following data are from the accounting records of Niles Castings for year 2: Units produced and sold . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85,000 Total revenues and costs Sales...
Write down an equation for the reaction of secondary butyl alcohol with Chromic Anhydride Reagent.
Adam Smith believed that if people set out to promote the public interest, they will not do nearly as much good as they will if they _________.
Number 5 on the drawing shows a. the maximum camber. b. the mean camber line. c. the uppersurface curvature. d. the maximum thickness.
On January 1, 2012, Kristen Corporation had the following stockholders equity accounts. Common Stock ($20 par value, 60,000 shares issued and outstanding)....................... $1,200,000 Paid-in...
Assume that Corn Co. sold 7,900 units of Product A and 2,100 units of Product B during the past year. The unit contribution margins for Products A and B are $35 and $64, respectively. Corn has fixed...
The table shows the gas mileages (in miles per gallon) of eight cars with and without using a fuel additive. At $\alpha=0.10$, is there enough evidence to conclude that the additive improved gas...
Are the mean annual wages the same for all three cities? Use $\alpha=0.10$. Assume that the population variances are equal. (a) identify the claim and state $H_{0}$ and $H_{a}$, (b) find the...
When estimating the value of an option on a traded stock, the expected return on the stock is irrelevantas proven in option pricing theory. For the valuation of an option on an asset that is not...
Form groups of four. Each member should identify a leader and interview them about their leadership style. Are their answers based on their own assessment? Employee surveys? A professional coach?...
In this project, you will be conducting an interview about sustainability efforts at a local organization. Find a local company or organization with which you are familiar. Arrange an interview with...
Suppose that for a given country the demand for imports can be expressed as IM = 1,250 + 0.05E and the demand for exports can be expressed as X = 750 0.08E, where E is the exchange rate (units of...
A bank is considering two investment portfolios composed of a mix of government securities (federal and municipal securities). The first portfolio has a return of 6% with probability 0.9 and returns...
A circuit for a gated D latch is shown in Figure P5.7. Assume that the propagation delay through either a NAND gate or an inverter is 1 ns. Complete the timing diagram given in the figure, which...
A single epoxide was isolated in 7984% yield in the following reaction. Was this epoxide A or B? Explain your reasoning.
How much more interest will be earned if $5000 is invested for 6 years at 7% compounded continuously, instead of at 7% compounded quarterly?
The Atlantic Medical Clinic can purchase a new computer system that will save $9,000 annually in billing costs. The computer system will last for ten years and have no salvage value. Required: What...
What sort of interface would we use instead of the Text based IDE to interact with such a programming language?
On January 1, 2024, Tropical World issues $40.5 million of 7% bonds, due in 10 years, with interest payable semiannually on June 30 and December 31 each year. The proceeds will be used to build a new...

In a survey of 3015 U.S. adults, (80 %) say their household contains a desktop or laptop

Question:

Step by Step Answer:

a 0786 0814 b There is enough evidence ...View the full answer

Elementary Statistics Picturing The World

Students also viewed these Statistics questions