The first pic is the question, since I’ve been receiving some incorrect answers from the tutors, I included an example problem in the second pic Automobiles Purchased An automobile owner found that 20 years ago, 72% of Americans said that they would preferto purchase an American automobile. He believes that the number differs from 72% today. He selected a random sampleof 43 Americans and found that 38 said that they would prefer an American automobile. Can it be concluded that thepercentage today differs from 72%? At a = 0.10, is he correct? Use the critical value method with tables. Do not roundintermediate steps.Part: 0 / 5Part 1 of 5(a) State the hypotheses and identify the claim.Ho :(Choose one) ▼H :(Choose one) ▼This hypothesis test is a (Choose one) ▼ test. Sample QuestionAutomobiles Purchased An automobile owner found that 20 years ago, 75% of Americans said that they wouldprefer to purchase an American automobile. He believes that the number is much greater than 75% today. Heselected a random sample of 54 Americans and found that 43 said that they would prefer an American automobile.Can it be concluded that the percentage today is greater than 75%? At a=0.01, is he correct? Use the critical valuemethod with tables. Do not round intermediate steps.(a) State the hypotheses and identify the claim.(b) Find the critical value(s).(c) Compute the test value.(d) Make the decision.(e) Summarize the results.Explanation(a) State the hypotheses and identify the claim.The null hypothesis H, is the statement that there is no difference between a parameter and a specific value. This isequivalent to Ho:p=0.75.The alternative hypothesis H, is the statement that there is a difference between a parameter and a specific value.In this case, the percentage of Americans who said that they would prefer to purchase an American automobile isgreater than 75%. This is equivalent to H :p>0.75.The problem asks, "Can it be concluded that the percentage of Americans who said that they would prefer topurchase an American automobile is greater than 75%?"Hence, the claim is the alternative hypothesis.(b) Find the critical value(s).From the figure below, for a right-tailed test with a- 0.01, the critical value is z-+2.33.a=0.10, C.V.- +1.28Ho:p=ka=0.05, C.V.=+1.65H:p>ka-0.01, C.V.-+2.33(c) Compute the test value.Formula for the : Test for ProportionsVpglnA Xwhere p == sample proportionp- population proportionq=1-pn- sample sizeFirst, it is necessary to find p. p, and q.4354-0.796P- 75%-0.759 =1-p=1-0.75= 0.25Using the formula for the z-test for proportions, compute the test value.Vpg'n0.796 -0.75V(0.75)(0.25)/54= 0.78

The random variable X follows normal distribution. We have to test whether the percentage today…

Automobiles Purchased An automobile owner found that 20 years ago, 72% of Americans said that they would prefer to purchase an American automobile. He believes that the number differs from 72% today. He selected a random sample of 43 Americans and found that 38 said that they would prefer an American automobile. Can it be concluded that the percentage today differs from 72%? At a =0.10, is he correct? Use the critical value method with tables. Do not round intermediate steps. Part: 0 / 5 Part 1 of 5 (a) State the hypotheses and identify the claim. Ho : (Choose one) ▼ H : (Choose one) ▼ This hypothesis test is a (Choose one) ▼ test.

Automobiles Purchased An automobile owner found that 20 years ago, 72% of Americans said that they would prefer to purchase an American automobile. He believes that the number differs from 72% today. He selected a random sample of 43 Americans and found that 38 said that they would prefer an American automobile. Can it be concluded that the percentage today differs from 72%? At a =0.10, is he correct? Use the critical value method with tables. Do not round intermediate steps. Part: 0 / 5 Part 1 of 5 (a) State the hypotheses and identify the claim. Ho : (Choose one) ▼ H : (Choose one) ▼ This hypothesis test is a (Choose one) ▼ test.

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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