**Market Research Group Probability Study**A market research group assumes that \( p = 25\% \) of customers would be willing to upgrade their services. A sample of \( n = 300 \) customers would be polled, and the random variable \( Y \) indicates a count of positive responses.**Use Normal Approximation to the Binomial for the Following Questions:**1. **Evaluate the Probability that \( Y \) would be above 87.**2. **Find the Chance of Having 60 to 69 Positive Answers.**3. **Determine How Likely the Value of \( Y \) would Exceed 72.**4. **Evaluate Approximate Values \( y_{(0.05)} \) and \( y_{(0.95)} \) such that Only 5% would be Above \( y_{(0.05)} \) and Also 5% would be Below \( y_{(0.95)} \).** **Study Involving Sample Proportion Analysis**A study involves \( n = 225 \) students. Researchers expect that 10% of them would change their major within the next two semesters. **Use sampling distribution of the sample proportion to answer the questions below.**1. **Determine parameters** of approximating normal distribution for sample proportion of students who would change their major.2. What is the chance that a sample proportion of those students **would exceed 9%?**3. Determine approximate probability that the sample proportion **would be below 12.5%.**4. Evaluate the chance of having the sample proportion **between 9.5% and 11.5%.**

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Market research group assumes that p = A sample of n = 25% of customers would be willing to upgrade their services. 300 customers would be polled and random variable Y indicates a count of positive responses. Use Normal Approximation to the Binomial for next questions 1. Evaluate probability that Y would be above 87 2. Find the chance of having 60 to 69 positive answers 3. Determine how likely the value of Y would exceed 72 4. Evaluate approximate values y(0.05) and y(0.95) such that only 5% would be above 5% would be below y(0.95) Y(0.05) and also

Market research group assumes that p = A sample of n = 25% of customers would be willing to upgrade their services. 300 customers would be polled and random variable Y indicates a count of positive responses. Use Normal Approximation to the Binomial for next questions 1. Evaluate probability that Y would be above 87 2. Find the chance of having 60 to 69 positive answers 3. Determine how likely the value of Y would exceed 72 4. Evaluate approximate values y(0.05) and y(0.95) such that only 5% would be above 5% would be below y(0.95) Y(0.05) and also

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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