A certain pay television company wishes to estimate the proportion of its customers who would  purchase a pay television program guide. To do this, the company manager decides to select a random  sample of customers and note the number who would purchase a program guide. Suppose that experience in other areas suggests that about 13% of customers will purchase a program guide.   How many customers should the company manager include in his sample if he wishes to estimate the true proportion who will purchase the program guide correct to within 5% (0.05) with a confidence level of 95%?

Q: Suppose the percent of licensed U.S. drivers (from a recent year) that are female is 48.30. Of the…

A: The study under consideration is percentage of licensed us drivers. Let F denote the female licensed…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A:

Q: According to a census company, 7.1% of all babies bon are of low birth weight. An obstetrician…

A: H0 : p = 0.071 H1 : p > 0.071   Observed value of low birth = 28 Observed value of not low birth…

Q: In preparing a report on the economy, we need to estimate the percentage of business that plan to…

A:

Q: newspaper infographic titled "Social Media Jeopardizing Your Job?" summarized data from a survey of…

A: Given: It is assumed that the sample is the representative of population. Thus, Sample…

Q: A regional government is interested in expanding the facilities of a day care center for mentally…

A: Given information: It is given that stratified sampling is used with people in the city using the…

Q: ccording to the U.S. Bureau of Labor Statistics, approximately equal numbers of men and women are…

A: It is given that: For the Industrial sector: The no. of sample size, n1=110. The no. of sampled…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: Suppose you select a simple random sample of 75 Douglas College students, and you find that 8 are…

A: The point estimate of the population proportion is the sample proportion. Given that, 8 out of the…

Q: To determine the percentage of patients who follow the advice of their personal physician,…

A: To check :  H0 : P = 0.96   vs H1 :P≥ 0.96 P: population proportion of patients across the nation…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Sample Proportion The sample proportion describes the proportion of people during a sample with a…

Q: Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep.…

A: It is given that n=409 and x=21.

Q: A restaurant chain would like to measure the proportion of customers who are generally satisfied…

A: During a 1-week period, 147 customers were surveyed and 93% of them reported as being either…

Q: recent study reported that 12% of people toss away about half of what they buy at the grocery store.…

A: From the given information we conduct Z test for proportion.

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: From the given data we can conclude that, Proportion = 25% Margin of error = 1.3%

Q: YouTube is a popular destination on the internet; let's look at how YouTube usage is distributed…

A: Event Y denote that selected internet user has to use internet and Ai ,i=1,2,and 3 denote that…

Q: A researcher wishes to estimate the number of households with two computers. How large a sample is…

A: given data   CI = 0.90, P ( - Z< P < Z ) = 0.90 therefore z = 1.645 ( =z table ) E = 6% =…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Given: The proportion of people who like dark chocolate more than milk chocolate is 32% Margin of…

Q: A researcher wants to estimate the percentage of adults in Georgia that have not graduated from high…

A: As we know Statistics represents sample and Parameter represents population.

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: The given data is as follows:

Q: A researcher wishes to estimate the number of households with two computers. How large a sample is…

A: From the provided information, Confidence level = 98% Sample proportion (p̂) = 0.20 Margin of error…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A:

Q: According to a census company, 7.1% of all babies born are of low birth weight. An obstetrician…

A: Here we conduct Z test for proprtion.

Q: Thirty-three percent of all Americans drink bottled water more than once a week (Natural resources…

A: Note: Hi there! Thank you for posting the question. Unfortunately in the sub-part(b), some required…

Q: Suppose an internet marketing company wants to determine the percentage of customers who click on…

A: Margin of error=E=5%=0.05 , Confidence level=C.I=94%=0.94

Q: should their sample size be?

A: here use solvin's formula

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests."…

A: Given information: Sample of 200 buses and find that 20 buses fail the safety inspection. Let us…

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: The percentage of employees who suffered lost time in accidents  last year was 6%The percentage of…

Q: A car dealership is deciding the proportion of cars they will order with cloth seats. You have been…

A: We have to find sample size required for given margin of error.

Q: As chairperson of the Rogers County Task Force on Aging, you wish to estimate the proportion of…

A: Sample size n =44 Favorable cases x =22 Sample proportion p^=x/n  =22/44 =0.500

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Here the proportion of people liking dark chocolate is 37% with a margin of error 2.5%  So, the…

Q: As Director of Student Services for the Lake County School District, you wish to estimate the…

A: X=35, n=50

Q: A survey conducted by a song rating service finds that the percentages of listeners familiar with…

A: Expected value is also known as mean value or average value. When the raw data is not given, instead…

Q: Suppose a clothing store wants to determine the current percentage of customers who are over the age…

A:

Q: A researcher wishes to estimate the number of households with two computers. How large a sample is…

A: population proportion (p) = 0.23 let, sample proportion = m and , number of samples to be collected…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A:

Q: If we construct a 95% confidence interval estimate for the true proportion of all Minnesota school…

A: here given, n = 200 sample proportion  =20200 = 0.1 here for z-critical use excel command…

Q: survey of Hoosiers found that 47%47% are Pacers fans, 54%54% are Colts fans, and 25%25% are Pacers…

A: Given that  Colts fans = A  P(A) = 47% = 0.47 Pacers fans = B P(B)= 54% = 0.54 Pacers fans but not…

Q: The Institute of Education Sciences measures the high school dropout rate as the percentage of 16-…

A: Since the hypothesis is one tailed (direction decrease).