We have given a likely range for the observed value of a sample proportion p. a. Based on the given range, identify the educated guess that should be used for the observed value of ˆ p to calculate the required sample size for a prescribed confidence level and margin of error. b. Identify the observed values of the sample proportion that will yield a larger margin of error than the one specified if the educated guess is used for the sample-size computation. 0.4 to 0.7

Q: The pulse rates of 153 randomly selected adult males vary from a low of 37 bpm to a high of 101 bpm.…

A:

Q: A lobbyist is trying to estimate the true proportion of US adults that support an upcoming bill.…

A: Givenapproximation of p = 0.5Margin of error(E)=0.01confidence level = 95%

Q: d the sample size needed to estimate the percentage of adults who can wiggle their ears. Use a…

A: Margin of error E=4%=0.04C.I=95%=0.95

Q: In a study of government financial aid for college students, it becomes necessary to estimate the…

A: a) From the given information,   Margin error = 0.04 Assume Sample proportion = 0.5   Critical…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Given,margin of error(E)=0.058sample proportion (p^)=0.235α=1-0.76=0.24α2=0.12Z0.12=1.175…

Q: Find the smallest sample size needed to estimate the population proportion for a margin of error of…

A: Given: Margin of error E = 4%=0.04 Confidence level =95% Since there is no previous study the…

Q: Find the required sample size, n, if c=0.89, E=0.05, and  is unknown.

A: Solution: Given, c=0.89 E=0.05 Proportion is unknown. The critical value for zα/2 =1.598 using Excel…

Q: 9. Answer parts a-d. What is the point estimate of the population mean? 8.38 .. Find the standard…

A: We have given that,  Sample size (n) = 532, mean (x̄) = 3.38 and standard deviation (s) = 1.9

Q: Use the given data to find the minimum sample size required to estimate a population proportion or…

A:

Q: Use the given degree of confidence and sample data to construct a confidence interval for the…

A:

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: A confidence interval and hypothesis testing are inference process which is used to draw conclusions…

Q: use the given data to find the minimum sample size required to estimate the population proportion.…

A:

Q: Use the given data to find the minimum sample size required to estimaate the population proportion.…

A: As p and q are unknown, consider the values of p and q as 0.5.

Q: or r=0.7789 and sample size=10, the corresponding t value is:"     2.512     3.512     3.034…

A: r = 0.7789 , n = 10

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: It is given that confidence level is 0.99, standard deviation is 588 and margin of error E is 130.

Q: Find the 95% interval estimate given the following information: the population standard deviation is…

A: Confidence interval give a range of values for the unknown parameter of the population. The width of…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: The formula of sample size is, Use EXCEL Procedure for finding the critical value of z.   Follow…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Ans - Given, Margin of error: E =  0.01;      confidence level: 95%; α = 1 - 0.95 = 0.05 Zα2  = 1.96…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: The confidence level is 93% Therefore, α = 0.07 and α/2=0.035. The margin of error is 0.002 Since…

Q: assume that a sample is used to estimate a population proportion p. find the margin of error that…

A: Givensample size(n)=325x=54.2p^=xn=54.2325=0.1668confidence level = 95%

Q: Determine the most conservative sample size for the estimation of the population proportion for the…

A: The formula to compute sample size using population proportion is,

Q: 1. A sample size of 100 grade 9 students has a mean age of ?̅= 16 ????? and the population variance…

A:

Q: In a study of government financial aid for college students, it becomes necessary to estimate the…

A: Given that  Margin of error =E =0.03 90% confidence interval.

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Given, Margin of error E = 0.05 Confidence level = 99% p = 0.15 At 99% confidence level the z is, α…

Q: Use the given data to find the minimum sample size required to estimate a population proportion or…

A: The random variable X follows normal distribution. The value of the margin of error is 0.04. The…

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: Given:         Standard Deviation σ = 538         Confidence Level (c) = 95% = 0.95         Margin…

Q: Use the given data to find the minimum sample size required to estimate the population proportion…

A:

Q: In a study of government financial aid for college students, it becomes necessary to estimate the…

A:

Q: In a study of government financial aid for college students, it becomes necessary to estimate the…

A: Given : Margin of error = E = 0.03 Confidence Level = 0.9 Significance Level = 0.1     a) If nothing…

Q: In a study of government financial aid for college students, it becomes necessary to estimate the…

A: From the provided information, Margin of error (E) = 0.03 Confidence level = 99%

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: The confidence level is 95% Therefore, α = 0.05 and α/2=0.025. The margin of error is 0.01 Here, p=…

Q: Determine the most conservative sample size for the estimation for the population proportion for the…

A: From the provided information, Confidence level = 95% Margin of error (E) = 0.03

Q: In a study of government financial aid for college students, it becomes necessary to estimate the…

A:

Q: A population proportion is to be estimated. Estimate the minimum sample size needed to achieve a…

A: From the provided information, Margin of error (E) = 0.02 Confidence level = 95%

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Formula for the sample size needed to estimate a population proportion is

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: From the given information,   Margin error = 0.07 Sample proportion = 0.22   The objective is to…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.