Determine the sample size necessary to estimate p for the following information. a. E = 0.04, p is approximately 0.60, and confidence level is 96% b. E is to be within 0.02, p is unknown, and confidence level is 95% c. E is to be within 3%, p is approximately 55%, and confidence level is 90%

Q: Find the sample size need to find the Population Mean if the margin of error is $105, the confidence…

A: Solution: From the given information, confidence level is 0.95, σ=315 and E=105.

Q: Height has an approximately bell-shaped distribution. For a sample of heights of college students…

A: Given that: Sample mean and standard deviation for males: x¯=72s=4 Sample mean and standard…

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: You are a manager for a local convenience store. You want to determine what proportion of your…

A: We have given that,  Margin of error (E) = 5.50% and confidence level = 90% Then,  We will find the…

Q: Construct a 90% confidence interval to estimate the population mean using the accompanying data.…

A: Given that  Sample mean (x¯) = 85 Population standard deviation (σ) = 20 Sample size (n) = 16…

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A:

Q: Using the given margin of​ error, confidence​ level, and likely range for the observed value of the…

A: Obtain the sample size. The sample size is obtained below as follows: The formula of sample size is,

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

A:

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

A:

Q: For a sampling distribution of n = 500 and population proportion of 0.48 of those who prefer cookies…

A:

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

A: Step 1: Given informationConfidence level, c = 0.90Margin of error, E = 0.05 Step 2: Part (a)The…

Q: Height has an approximately bell-shaped distribution. For a sample of heights of college students…

A: We have given that Mean(x̅) = 72 Standard deviation(s) = 4

Q: Use the sample data and confidence level given below to complete parts ( a ) through ( d ) . A…

A: In the given pool  and  who said "yes".The confidence level is 95%.

Q: Construct the confidence interval for the population mean y. C= 0.90, x=16.6, o= 10.0, and n= 80

A: Here, C=0.90, x=16.6, σ=10.0, and n=80.

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: Determine if you should use a confidence interval for the mean or a confidence interval for…

A: The aim is to determine whether to use confidence interval for mean or a confidence interval for the…

Q: In a clinical trial of a certain drug, 27 subjects experience headaches among the 219 subjects…

A: From the given information,

Q: city. Construct a 99% confidence interval estimate of the mean amount of mercury in the population.…

A: From the provided information, Sample size (n) = 7 Confidence level = 99% Level of significance = 1…

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

A: GIVEN DATA,margin of error =1%=0.01CI=0.95α=1-0.95=0.05Zc=Zα/2=Z0.05/2=Z0.025=1.96 [ from excel…

Q: Suppose you calculate a 95% confidence interval for a proportion to to be: 0.39 to 0.78. Determine…

A: Given,   Lower bound = 0.39​ Upper bound = 0.78   Here, we use to determine the margin of error.

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: Sample size n=972 Number of successes x=577 Confidence level 99%

Q: 6) Find the t, value from Table for the indicated confidence level and sample size. 95% confidence…

A: a) 95% confidence level and n = 35 Degree of freedom = 35 – 1 = 34 Significance level(α) = 1-0.95 =…

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: Which of the following will decrease the confidence interval width for the population mean?   A)…

A: The confidence interval (CI) gives a range of values in which a parameter lies with a certain…

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

A:

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

A: From the provided information,n = 995x = 591Confidence level = 90%