Identify the null hypothesis, alternative hypothesis, P-value, conclusion about the null hypothesis, and final conclusionthat addresses the original claim.9. A supplier of digital memory cards claims that no more than 1% of the cards are defective. In a random sampleof 500 memory cards, it is found that 3% are defective, but the supplier claims that this is only a samplefluctuation. At the 0.05 level of significance, test the supplier's claim that no more than 1% are defective.

From the given information, the claim of the problem is the percentage of defectives is no more than…

Answered: Identify the null hypothesis,…

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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The company that you work for requires that less than 3% (.03) of the microchips that you deliver are defective. If the percentage is not below 3%, you cannot ship the microchips. You collect a simple random sample of 430 microchips and find that 12 of them are defective. Conduct a hypothesis test with a a =.05 level of significance to determine if less than 3% of the microchips are defective. Write all non-calculation answers in complete sentences. a. Which test would you use and why? b. Write the null and alternative hypothesis in complete sentences. (Make sure you mark which is the null and which is the alternative.) c. Write the null and alternative hypothesis as symbols. d. State the requirements that have been met to run the test. e. What is the test statistic and the p-value? (Make sure you use the right notation.) f. Should you reject or fail to reject the null hypothesis? g. State the conclusion for the test.
q11
A newsletter publisher believes that less than 36%36% of their readers own a laptop. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.010.01 level of significance, the advertiser failed to reject the null hypothesis. What is the conclusion regarding the publisher's claim?
A random sample of 873 births included 434 boys. Use a 0.10 significance level to test the claim that 50.7% of newborn babies are boys. Do the results support the belief that 50.7% of newborn babies are boys? Identify the null and alternative hypotheses for this test. Choose the correct answer below. OA. H₂: p=0.507 H₁: p=0.507 OB. Ho: p=0.507 H₁: p0.507 OD. Ho: p*0.507 H₁: p=0.507 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. OA. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that 50.7% of newborn babies are boys. OB. Reject Ho. There is sufficient evidence to warrant rejection of the claim that 50.7% of newborn babies are boys. OC. Fail to reject Ho. There is not sufficient…
In 1970, 590 students among 1000 randomly selected college freshmen thought that capital punishment should be abolished. In 2005, 350 students among 1000 randomly selected college freshmen thought that capital punishment should be abolished. What is the two-sample z test statistic for evaluating the null hypothesis that the percentage of students who support capital punishment did not change from 1970 to 2005? Round your answer to two decimal places.
A newsletter publisher believes that 48 % of their readers own a laptop. A testing firm believes this is inaccurate and performs a test to dispute the publisher's claim. After performing a test at the 0.10 level of significance, the testing firm fails to reject the null hypothesis. What is the conclusion regarding the publisher’s claim?
A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.
At CPU, it is estimated that fewer than 25% of the students have cars on campus. Does this seem to be a valid estimate if, a random sample of 90 college students, 28 are found to have cars? Use a 0.05 level of significance.
A newsletter publisher believes that less than 68 % of their readers own a Rolls Royce. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.05 level of significance, the advertiser failed to reject the null hypothesis. What is the conclusion regarding the publisher's claim?
A random sample of 818 births included 435 boys. Use a 0.05 significance level to test the claim that 50.6% of newborn babies are boys. Do the results support the belief that 50.6% of newborn babies are boys? Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. H0: p=0.506 H1: p>0.506 B. H0: p≠0.506 H1: p=0.506 C. H0: p=0.506 H1: p≠0.506 D. H0: p=0.506 H1: p<0.506 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is: (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is : (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. A. Fail to reject H0. There is not sufficient evidence to warrant rejection of the claim that 50.6% of newborn babies are boys. B.Fail to reject H0. There is sufficient evidence to…
3
A newsletter publisher believes that less than 44 % of their readers own a Rolls Royce. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.05 level of significance, the advertiser decides to reject the null hypothesis. What is the conclusion regarding the publisher's claim?

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