### InstructionsAn IQ test is designed with a mean of 100 and a standard deviation of 12 for the population of normal adults. Your task is to find the sample size necessary to estimate the mean IQ score of statistics students such that it can be stated with 90% confidence that the sample mean is within 2 IQ points of the true mean. Assume that the population standard deviation (σ) is 12. Use technology to determine the required sample size, and evaluate if this sample size is reasonable for a real-world calculation.---### Question**The required sample size is:** (Round up to the nearest integer.)---**Would it be reasonable to sample this number of students?**- ○ Yes. This number of IQ test scores is a fairly large number.- ○ No. This number of IQ test scores is a fairly small number.- ○ No. This number of IQ test scores is a fairly large number.- ○ Yes. This number of IQ test scores is a fairly small number.

Answer Given,The confidence interval = 90%The margin of error [E] = 2The mean = 100The standard deviation = 12Yes. This number of IQ test scores is a fairly small number.Final answer n = 98Yes. This number of IQ test scores is a fairly small number.

Answered: An IQ test is designed so that the mean…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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