Question: A recent Harris Poll on green behavior showed that 25% of adults often purchase used items instead of new ones. Consider a random sample of

A recent Harris Poll on green behavior showed that 25% of adults often purchase used items instead of new ones. Consider a random sample of 75 adults. Let ^p be the sample proportion of adults who often purchase used instead of new items.
(a) Is it appropriate to approximate the ^p with a normal Explain.
(b) What are the values of μ^p and σ^p?

Step by Step Solution

★★★★★

3.43 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a Yes as both np 7... 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)

785-S-J-P-D (1225).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

According to a recent Harris Poll of adults with pets, the probability that the pet owner cooks especially for the pet either frequently or occasionally is 0.24. (a) From this information, can we...

In a recent Harris Poll, a random sample of adult Americans (18 years and older) was asked, When you see an ad emphasizing that a product is Made in America, are you more likely to buy it, less...

In a recent Harris Poll, a random sample of adult Americans (18 years and older) was asked, Given a choice of the following, which one would you most want to be? Results of the survey, by gender, are...

A recent Harris Poll on green behavior showed that 25% of adults often purchased used items instead of new ones. If a random sample of 76 adults is used, what is the probability that fewer than 8 of...

This text was adapted by The Saylor Foundation under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License without attribution as requested by the work's original creator or licensee. 1...

Green Behavior: Purchasing Habits A recent Harris Poll on green behavior showed that 25% of adults often purchase used items instead of new ones. Consider a random sample of 75 adults. Let p be the...

What makes this campaign a community-based social marketing campaign? A Community-Based Social Marketing Anti-littering Campaign: Be the Street You Want to See 23 Mine ok Hughes, Will McConnell and...

What makes this campaign a community-based social marketing campaign? Find other anti-littering campaigns and briefly describe them. Analyze what type of approach they use. Do they use...

26. Green Behavior: Purchasing Habits A recent Harris Poll on green behavior showed that 25% of adults often purchase used items instead of new ones. Consider a random sample of 75 adults. Let p be...

Appendix A: Financial Analysis Profitability and Liquidity (based on data in Exhibit 1, p. C-123): 2013 2012 2011 2009 2002 Net Profit Margin ROA ROE Current Ratio Summary of trends, comparisons:...

If the solenoid in Fig. 21-50 is being pulled away from the loop shown, in what direction is the induced current in the loop?

Pa Ltd and Son Ltd have produced the following statements of financial position as at 30 June 2019: Statements of financial position as at 30 June 2019: Rs'000 Rs'000 ASSETS Non-current Assets PPE...

Precijion Electronics began operations September 1 . 2 0 xt . The frm selts its merchendee for cash and on September, Precision Electronics engaged in the following tramactions: DME Stip 3 0 1 for $...

What is the equation for the selling price? You buy items at a cost of x and sell them for y. Assume that your selling price includes a profit of 10% plus a fixed cost of $5.00. Give an equation that...

Basic Computation: Confidence Interval Suppose x has a mound-shaped distribution with s 5 9. A random sample of size 36 has sample mean 20. (a) Check Requirements Is it appropriate to use a normal...

Basic Computation: Sample Size Suppose x has a mound-shaped distribution with s 5 3. (a) Find the minimal sample size required so that for a 95% confidence interval, the maximal margin of error is E...

Basic Computation: Sample Size Suppose x has a normal distribution with s 51.2. (a) Find the minimal sample size required so that for a 90% confidence interval, the maximal margin of error is E 5...

f(x)=(5)/(x+1)-3 Which key attribute (s) does the function exhibit

Question 2 (10 pts). In Chapter 2, we introduced the Ricardian model, and you were shown how nominal prices, wages, and even exchange rates can be derived from the real underlying patterns of...

Which of the following is a service provided by commercial banks? O Play a key role in the transmission of monetary policy O Provide payment services O Provide maturity intermediation services. O All...