For each hypothesis test:State the claim (or research question) mathematically.Determine the null and alternative hypotheses.Identify the sample statistics.Compute the standardized test statistic. Round to two decimal places.Determine the P-value. Round to three decimal places.Make a decision about the hypotheses and interpret the decision regarding the underlying question.USE TI84 if possible 7. A taxi company claims that its drivers have an average experience greater than 12.5 years. Aresearcher decides to investigate this, and finds that in a random sample of 12 taxi drivers, themean driving experience was 13.1 years with a standard deviation of 1.6 years. At a = 0.05,does the sample provide evidence that the mean number of years of experience of all the taxidrivers is actually greater than 12.5 years?

Consider a variable, X: driving experience.Given that,Sample size, Sample sd, Sample mean, To test…

A taxi company claims that its drivers have an average experience greater than 12.5 years. A researcher decides to investigate this, and finds that in a random sample of 12 taxi drivers, the mean driving experience was 13.1 years with a standard deviation of 1.6 years. At a = 0.05, does the sample provide evidence that the mean number of years of experience of all the taxi drivers is actually greater than 12.5 years?

A taxi company claims that its drivers have an average experience greater than 12.5 years. A researcher decides to investigate this, and finds that in a random sample of 12 taxi drivers, the mean driving experience was 13.1 years with a standard deviation of 1.6 years. At a = 0.05, does the sample provide evidence that the mean number of years of experience of all the taxi drivers is actually greater than 12.5 years?

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 answer choices below represent different hypothesis tests. Which of the choices are left-tailed tests? Select all correct answers. Select all that apply: A. H0:X=17.3, Ha:X≠17.3 B. H0:X≥19.7, Ha:X<19.7 C. H0:X≥11.2, Ha:X<11.2 D. H0:X=13.2, Ha:X≠13.2 E. H0:X=17.8, Ha:X≠17.8
Teacher Salaries. Data on salaries in the public school system are published annually in Ranking of the States and Estimates of School Statistics by the National Education Association. The mean annual salary of (public) classroom teachers is $55.4 thousand. A hypothesis test is to be performed to decide whether the mean annual salary of classroom teachers in Ohio is greater than the national mean. a. determine the null hypothesis. b. determine the alternative hypothesis. c. classify the hypothesis test as two tailed, left tailed, or right tailed.
If the level of significance in a hypothesis test is 1 %, what would the p-value have to be for failing to reject the null hypothesis? a. equal to 0.005 b. less than .01 c. greater than .01
Find test value and p-score.
Answer the given problem below by following in hypothesis testing. Sample problem: Determine the weight of the students before and during the quarantine. Did the students lose more fat before the quarantine? Weight before quarantine: sample mean = 5.9 kg sample standard deviation = 4.1 kg sample size = n = 42 standard error = SEM1 = 4.1/ √42 = 0.633 Weight during quarantine: sample mean = 4.1 kg sample standard deviation = 3.7 kg sample size = n = 47 standard error = SEM2 = 3.7/ √47 = 0.540 measure of variability = sq root [(0.633)2 + (0.540)2] = 0.83 1. Determine the p-value = 0.03 (LOS= 95%; α=0.05) 2. Make a decision 3. Conclusion
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Find test value and p-score.
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