An IQ test is designed so that the mean is 100 and the standard deviation is 8 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99​% confidence that the sample mean is within 2 IQ points of the true mean. Assume that σ=8 and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation. The required sample size is   ​(Round up to the nearest​ integer.)

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 17 for the population…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

Q: An 1Q test is designed so that the mean is 100 and the standard deviation is 19 for the population…

A: Given : Mean = μ = 100 Standard deviation = 19 Margin of error (E) = 8 Level of significance = 0.10

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 20 for the population…

A: GIVEN DATA,an IQ test mean is 100 and standard deviationis 20 for the population of normal adults…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 10for the population of…

A:

Q: deviation =19 and determine the required sample size using technology. Then determine if this is…

A: Given : Margin of error, ME = 5 population standard deviation, σ = 19

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 22 for the population…

A: Given information- Population standard deviation, σ = 22 Confidence interval = 0.90 Significance…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 12 for the population…

A: Given data,σ=12E=5z-value  at 99% confidence is Zc=2.576n=?

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 16 for the population…

A: Given : μ=100σ=16Confidence level = 95%α=1-0.95=0.05Margin of error :E=4The formula for sample size…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 10 for the population…

A:

Q: Find the standard error,  t statics Sample variance = .67 Sample size = 30 Population  size = 60…

A: Given information- Sample variance, s2 = .67 So, sample standard deviation, s = 0.819 Sample size, n…

Q: An 10 test is designed so that the mean is 100 and the standard deviation is 13 for the population…

A: It is given that confidence level is 0.90, standard deviation is 13 and margin of error E is 5.

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 23 for the population…

A: Given that  Population standard deviation =23 Margin of error =E =8 95% confidence.

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 16 population of normal…

A: Given that  σ = 16E = 4 At 90% the critical value at Zα = 1.645 by standard normal table of Z we…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 10 for the population…

A: The provided data is,

Q: The required sample size is (Round up to the nearest integer.) Would it be reasonable to sample this…

A:

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 13 for the population…

A: Given,margin of error(E)=7population standard deviation(σ)=13

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population…

A: Given,Mean μStandard devation σ=19Margin of Error E=7α=0.05Critical value Zα/2=Z0.05/2=1.96

Q: of statistics students such that it can be said with 90% confidence that the sample mean is within 8…

A:

Q: An iq test is designed  so that the mean is 100 and the standard  deviation  is 15 for the…

A:

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 15 for the population…

A: We want to find sample size (n)

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 20 for the population…

A:

Q: AH IU test is designed so that the mean is 100 and the standard deviation is 9 for the population of…

A:

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 12 for the population…

A: From the Standard Normal Table, the z value for 95% confidence is 1.96.

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 17 for the population…

A: Givenstandard deviaion(σ)=17Margin of error(E)=4confidence level =…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 22 for the population…

A: The given information, α = 0.10 ; E = 5 ; σ = 22 The critical value for the significance level α =…

Q: If you have a population standard deviation of 10 and a sample size of 4, what is your standard…

A: Given,population standard deviation(σ)=10sample size(n)=4

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 21 for the population…

A: zα/2=z0.05=1.645

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 25 for the population…

A:

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 15 for the population…

A: Given information Standard deviation σ= 15 Confidence interval = 0.99 Significance level(α) = 1-…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 23 for the population…

A:

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population…

A: Use the MINITAB to obtain the sample size: Procedure: Select Stat > Power and sample size >…

Q: tat

A: The objective of this question is to determine the sample size necessary to estimate the mean IQ…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 13 for the population…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 25 for the population…

A: Given information Confidence interval = 0.95 Significance level(α) = 1- 0.95 = 0.05 n = sample size…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 12 for the population…

A: We want to find the sample size (n)

Q: An 1Q test is designed so that the mean is 100 and the standard deviation is 21 for the population…

A: It is given that the confidence level is 0.95, the population standard deviation is 21, and the…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.