1. A particular brand of tires claims that its deluxe tire averages at least 55,000 miles before it needs to be replaced. A survey of owners of that tire design is conducted. From the 45 tires surveyed, the mean lifespan was 46,400 miles with a standard deviation of 6,800 miles. Using a=0.05, is the data highly inconsistent with the claim?

Q: Instruction: For all test of hypotheses, write Ho and Ha in words, specify test procedure, show…

A: (C) The hypothesis to be tested is given by H0: μ0%=μ5%=μ10%=μ15%H1: At least one of the μi is…

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A: The null and alternative hypothesis is, Level of significance, α=0.05 The given output is,

Q: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample…

A: Solution: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. Z test statistic or…

Q: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample…

A: Here critical value= +-1.96 Test statistics z = 2.20

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A: Given Information: Country A: Sample size n1=1004 Sample proportion p^1=0.53 Country B: Sample size…

Q: The display provided from technology available below results from using data for a smartphone​…

A: given data claim : μ < 6.00α = 0.05technology output :   ​ T-Test    μ<6.00    t=−3.552993…

Q: You wish to test the following claim (H) at a significance level of a = 0.10. Ho:p12 P2 Ha: P1 P2…

A: The question is about hypothesis testing.Given :No. of successes in first sample ( x1 ) = 102No. of…

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A: Given Alpha=0.05 n2=123 n2=104 X1=269 X2=335

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A: given data clim : p < 0.10n = 321x = 26α = 0.05p^ = xn = 26321 = 0.0810

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A: n1 = 26 n2 = 49   The degree of freedom  df = n1 + n2 -2 df = 26 + 49 -2 = 73 Critical Value t =…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.