Statistics Question Assume that a simple random sample has been selected from a normally distributedpopulation and test the given claim. Use either the traditional method or P-value methodas indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) orP-value (or range of P-values) as appropriate, and state the final conclusion thataddresses the original claim. Choose the correct option based on the probleminformation.In tests of a computer component, it is found that the mean time between failures is 520 hours.A modification is made which is supposed to increase the time between failures. Tests on arandom sample of 10 modified components resulted in the following times (in hours) betweenfailures.518 548 561 523 536499 538 557 528 563At the 0.05 significance level, test the claim that for the modified components, the mean timebetween failures is greater than 520 hours. Use the P-value method of testing hypotheses.Choose the correct P-value and conclusion based on the null hypothesis.0 0.01 < P-value <0.025. Reject Ho-00.05 < P-value <0.1. Reject Ho00.01 < P-value < 0.025. Fail to reject Ho-00.1 < P-value <0.2. Reject Ho.

Suppose μ is the population mean time between failure.

Answered: Assume that a simple random sample has…

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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Assume that a simple random sample has been selected from a normally distributed population and test the given claim.Use either the traditional method or P-value method as indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) or P-value (or range of P-values) as appropriate, and state the final conclusion that addresses the original claim.
Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Use either the traditional method or P-value method as indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) or P-value (or range of P-values) as appropriate, and state the final conclusion that addresses the original claim.A manufacturer makes ball bearings that are supposed to have a mean weight of 30 g. A retailer suspects that the mean weight is actually less than 30 g. The mean weight for a random sample of 16 ball bearings is 29 g with a standard deviation of 3.8 g. At the 0.05 significance level, test the claim that the sample comes from a population with a mean weight less than 30 g. Use the traditional method of testing hypotheses
Among a simple random sample of 331 American adults who do not have a four-year college degree and are not currently enrolled in school, 48% said they decided not to go to college because they could not afford school. A newspaper article states that only a majority of the Americans who decide not to go to college do so because they cannot afford it and uses the point estimate from the survey as evidence. Conduct a hypothesis test to determine if these data provide strong evidence supporting this statement. (a) What are the hypotheses for evaluating this test? (b) The test statistic is? (c) Based on the p-value for this test, what is the conclusion?
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A magazine reported that 47% of Canadians are confident they will take a winter vacation at some point between December through March. To test the magazine's claim, a random sample of 65 Canadians is taken and 27 of them said they are confident they will take a winter vacation at some point between December through March. At 5% significance level do the sample data provide sufficient evidence to support that the actual percentage is smaller than what the magazine reported? A. What are the null and alternative hypotheses?(Type "mu" for the symbol μ, "xbar" for the symbol x¯, "p" for the symbol p, or "phat" for the symbol ?̂ p^, e.g. mu > 0.5 for the mean is greater than 0.5, xbar < 0.5 for the sample mean is less than 0.5, p not = 0.5 for the proportion is not equal to 0.5, phat = 0.5 for the sample proportion is equal to 0.5.Percentages should be provided as values between 0 and 1. Please do not include units.) H0 = Ha = B. What is the test statistic value? (Include as many…
1. Identify the null and alternative hypotheses. 2. Calculate the test statistic.
Among a simple random sample of 331 American adults who do not have a four-year college degree and are not currently enrolled in school, 48% said they decided not to go to college because they could not afford school. a) A newspaper article states that only a minority of the Americans who decide not to go to college do so because they cannot afford it and uses the point estimate from this survey as evidence. Conduct a hypothesis test to determine if these data provide strong evidence supporting this statement. b)Would you expect a confidence interval for the proportion of American adults who decide not to go to college because they cannot afford it to include 0.5? Explain.
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Calculate the test statistic for the test of hypotheses
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