Use technology to help you test the claim about the population mean, μ, at the given level of significance, a, using thegiven sample statistics. Assume the population is normally distributed.Claim: μ> 1170; x = 0.08; a=207.79. Sample statistics: x= 1198.51, n = 250Identify the null and alternative hypotheses. Choose the correct answer below.B. Ho: ≤1198.51OA. Ho: 21170Ha: 1170Ha: 1198.51OC. Ho: 21198.51Ha:1198.51OE. Ho: 1198.51Ha: s1198.51Calculate the standardized test statistic.The standardized test statistic is 2.17.(Round to two decimal places as needed.).Determine the P-value.P=0.015 (Round to three decimal places as needed.)Determine the outcome and conclusion of the test.O D. Ho: H> 1170Ha: ps 1170OF. Ho: HS1170H₂H1170Reject Ho. At the 8% significance level, there IS enough evidence to support the claim.Time Remaining: 01:29:26

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Answered: Identify the null and alternative…

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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Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correctsymbol (µ, p, Η) for the indicated parameter. An entomologist writes an article in a scientific journalwhich claims that fewer than 16 in ten thousand male fireflies are unable to produce light due to agenetic mutation. Use the parameter p, the true proportion of fireflies unable to produce light.
An education researcher claims that 57%of college students work year-round. In a random sample of 300 college students, 171 say they work year-round. At α=0.01, is there enough evidence to reject the researcher's claim? (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. % of college students work year-round. B. At least %of college students work year-round. C. The percentage of college students who work year-round is not %. D. At most %of college students work year-round. (b) State H0 and Ha.Select the correct choice below and fill in the answer boxes to complete your choice. A. H0:p≠Fill Ha:p=Fill B. H0:p≥Fill Ha:p<Fill C. H0:p≤Fill Ha:p>Fill D. H0:p<Fill Ha:p≥fill E. H0:p>fill Ha:p≤fill…
14. A water quality lab tests for the bacterial count in drinking water in a certain northern city. a) A test is made of a claim in the literature that the time to equilibrium in bacterial growth is greater in northerly climates, the standard deviation remaining unaffected. The mean time in southerly cities has been found, from many measurements, to equal 24.1 hours with a standard deviation of 2.3 hours. The northern lab tests 21 water specimens and finds the mean time to equilibrium bacterial growth is 25.4 hours, with an estimated stan- dard deviation of 2.2 hours, which is not significantly different from the standard deviation of 2.3 hours quoted above. Does this data bear out the claim in the literature about the increase in mean time to equilibrium, at the 5% level of significance? b) Two salesmen turn up at the laboratory one week, each claiming that the additive he is selling will decrease the time to equilibrium bacterial growth, compared to the other salesman's product. The…
7.16 Using an app or the Web on a smartphone. The Nielsen Company reports that U.S. residents aged 18 to 34 years spend an average of 2.83 hours per day using an app or the Web on a smartphones You wonder if this it true for students at your large university because you rarely see students not using their smartphones. You collect an SRS of n = 75 students and obtain 2 = 3.17 hours with s =1.36 hours. (a) Report the 95% confidence interval for u, the average number of hours per month that students at your university use the Internet on a computer. (b) Use this interval to test whether the average time for students at your university is different from the average, reported by Nielsen. Use the 5% significance level. Summarize your results.
It has long been stated that the mean temperature of humans is 98.6°F. However, two researchers currently involved in the subject thought that the mean temperature of humans is less than 98.6°F. They measured the temperatures of 56 healthy adults 1 to 4 times daily for 3 days, obtaining 250 measurements. The sample data resulted in a sample mean of 98.3°F and a sample standard deviation of 1°F. Use the P-value approach to conduct a hypothesis test to judge whether the mean temperature of humans is less than 98.6°F at the a = 0.01 level of significance.
7 If P(Q)=0.29, P(R)=0.67, and P(QnR)= 0.2 find P(QUR). • Write your answer as a decimal rounded to two decimal places, if necessary. Your Answer Back View Summary
Suppose that we calculated Rs=.21 (n=15). Do we reject or accept the null hypothesis at p<.01
Let n₁ = 50, X₁ = 40, n₂ = 50, and X₂ = 20. Complete parts (a) and (b) below. a. At the 0.05 level of significance, is there evidence of a significant difference between the two population proportions? Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho: ₁2π₂ H₁: π₁ π₂ C. Ho: π₁ #1₂ H1: П1 =П2 Calculate the test statistic, ZSTAT, based on the difference P₁ - P2. The test statistic, ZSTAT, is (Type an integer or a decimal. Round to two decimal places as needed.) Calculate the p-value. O D. Ho: ₁ = π₂ H₁: π₁ #π₂ 퍼 The p-value is. (Type an integer or a decimal. Round to three decimal places as needed.)
Subject---chemistry
q6.2 I want to know the answer and detail step by step Thank you
The mean weight of female nurses working at a local hospital is at least 153 lbs. Express the null and alternative hypotheses in symbolic form for this claim.H0:μHa:μUse the following codes to enter the following symbols: ≥ enter >= ≤ enter <= ≠ enter !=
Urgent

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