Scanned with CamScanner 10. You wish to estimate, with 95% confidence, the proportion of senior high students in your school who read the first book of Harry Potter. Your estimate must be accurate within 2% of the population proportion. With no preliminary estimate available, what is the minimum sample size that you need? C. at least 2506 D. at least 2605 A. at least 2301 B. at least 2401

Q: 7- You want to estimate, with 95% confidence, the proportion of households with pets. Your estimate…

A:

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M.…

A: Apply Chi-square test

Q: Given the population size with a corresponding margin of error, determine the sample size of each of…

A: Given that,  N = 1500,  e = 5%     =0.05 The formula for calculating the sample size is,

Q: a) What is the sample size, found at the bottom of the table? 2072 b) What is the point estimate for…

A: Here it is given that, Sample size n= 2072 And point estimate, p^= 51.3% = 0.513

Q: If the population mean is 132, the sample mean is 136, o 6.3, and N 18, what is z? How likely is it…

A: The provided information is,

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M.…

A: There are 4 independent samples which are ABC, CBS, NBC and independent homes. The number of counts…

Q: Determine the minimum required sample size if you want to be 99% confident that the sample mean is…

A: Given Margin of error=2 Standard deviations=1.4

Q: You work for NASA and are interested in determining the population proportion, with 99% confidence,…

A:

Q: Find the estimated standard error for the sample mean for n = 12 and SS = 3843. Nearest hundredths…

A: Given : n = 12  ss = 3843

Q: If you want to be 99​% confident of estimating the population proportion to within a sampling error…

A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p)

Q: c) If the sample size were 100 instead, how would your limits and conclusions change? UCL (enter…

A:

Q: Suppose that your sample size was 37, what is P(t<-1.74) (Negative 1.74)?

A: Given information- Sample size, n = 37 t-score = -1.74 We have to find the p (t&lt;-1.74). Degree of…

Q: (a) How large should the sample be if the margin of error is to be less than $4? ANSWER: (b) If we…

A: here given , Population standard deviation  =  34$  Confidence level = 90%  MOE &lt; 4 $

Q: 10 15 20 25 for the toolbar, press ALT+F10 (PC) or ALT-FN+F10 (Mac.

A:

Q: When you are conducting the t test, the sample size must be greater than .30

A: We have to find the statement is true or false....

Q: If we need a sample size of 15 from the table below, how many samples we need to get in Group A…

A: Answer: Option d. 8

Q: Given the population size with a corresponding margin of error, determine the sample size of each of…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: Determine the sample size needed to be 99% confident the population proportion estimate is within 3%…

A: Given: Confidence level = 99% Level of significance = 0.01 margin of error = 0.03 Sample size = n

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M.…

A:

Q: (b) What would the sampling distribution of the sample mean for a random sample of size n=8 years…

A: Given: μ=1

Q: Given the population size with a corresponding margin of error, determine the sample size of each of…

A: Solution: Given information: N= 2500 Population size  e = 5%= 0.05  margin of error.

Q: If σ = 35, what sample size would you need to get the standard error to be at most 2.5? If the…

A:

Q: In order to estimate the population proportion with a high school education,  you need a minimum…

A:

Q: With reference to the preceding exercise, find therequired size of the sample when σ = 9, μ0 = 15,…

A:

Q: Suppose that you have a group of 1,000 city government employees and you want to survey them to find…

A: Given Information: Total Population = 1000 Margin of error = 0.05 Consider the proportion = 0.5 The…

Q: Given the desired margin of error, population standard deviation, and level of significance, we use…

A: Solution

Q: Given the population size with a corresponding margin of error, determine the sample size of each of…

A: Solution-: Given: N=3050,e=0.01 (or 1%) We determine the sample sample size (n)=?

Q: If N is the size of the population and n is the size of the sample, find the sampling fraction?

A: From the provided information, The population size is N and the sample size is n.

Q: than one percentage point? (a) Assume that nothing is known about the percentage of computers with…

A: Given: Confidence level=99%Margin of error=0.01

Q: When finding the t-value, how many degrees of freedom do we have from a sample size of n=10?

A: Degrees of freedom = n-1

Q: We need to estimate the percentage of businesses that plan to hire additional employees in the next…

A:

Q: If the sample size is n=16 what is likely true about the shape of the population?

A: Solution:  Central limit theorem: The central limit theorem state that as the sample size increases…

Q: You are told that the proportion p of those who answered "yes" to a poll about internet use is 'p =…

A:

Q: Why a sample size of n=100 is more likely to have a percentage of pop songs closer to the population…

A: Sample of size 32 or greater is consider as large sample .

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M.…

A: Solution

Q: A group of students need to submit a project and they need to survey people about their daily…

A: see the handwritten solution

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

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given,margin of error(E)=0.025Assume sample proportion(p^)=0.5α=1-0.90=0.1α2=0.05Z0.05=1.645   (from…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: The random variable X follows binomial distribution. The confidence level is 90%. The margin of…

Q: If you want to be 95​% confident of estimating the population proportion to within a sampling error…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: estimate the population proportion p,what is the minimum sample size we need in order to achieve a…

A: Solution: From the given information, confidence level is 0.95, p=0.1 and E=0.01.

Q: Find the estimated standard error for the sample mean for n = 16 and SS= 3806. Round to the nearest…

A: Ans - Find the estimated standard error for the sample mean for n = 16 and SS =  3806.…

Q: Determine the sample size necessary to estimate p for the following information. a. E = 0.04, p is…

A:

Q: (c) If we want a margin of error of only + 1.0, what sample size is needed? Round your answer up to…

A: The following information is provided. consider the level of significance is 0.05. Also,

Q: If we want to estimate the population proportion with a margin of error of 0.10 for a level of…

A: Given data,E=0.10z value at 90% confidence is Zc=1.645let proportion p=0.5n=?

Q: Determine the sample size associated with the following formula. Remember to always round up to the…

A: Given  n=1.96×3.560.162

Q: 374 is 22% of the sample size. Find n

A:

Q: A. The given population is 3476, n = 528, what will be the value of e (margin of error)? B. If a…

A: The objective is to find margin of error ,and to determine sampling interval of systematic sampling…