1. Multiple-choice questions on Advanced Placement exams have five options: A, B, C, D, and E. If all correctanswer positions are equally likely, each would come up approximately 20% of the time. However, it hasbeen speculated that B is the most common correct choice. A random sample of 400 multiple-choicequestions on a variety of AP exams shows that 90 of the 400 questions have B as the correct answer. Doesthis provide evidence that B is the correct choice on more than 20% of all AP exam questions?a. State hypotheses and calculate the sample statistic.b. Are conditions met for using a Normal distribution for this test? Explain. Proceed to answer theremaining steps using a Normal distribution regardless of your answer to this question.c. Calculate the standard error and z-test statistic.d. Use a Normal distribution to find the p-value and draw a curve with appropriate shaded region.Normal curve:p-value:e. State the conclusion of the test in context, using nontechnical language.f. Use Normal distribution methods to find a 95% confidence interval to three decimal places for theproportion of questions on all AP exams having B as the correct choice. Show your calculations.

Sample size (Total number of questions)Number of successes (Correct answer is B)Claim: B is the…

Answered: 1. Multiple-choice questions on…

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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