The following MINITAB output presents the results of a hypothesis test for a populationmean u.One-Sample T: XTest of mu = 5.5 vs > 5.5Variable N MeanStDev SE Mean 95% Lower Bound T Pх5 5.92563 0.15755 0.070465.775426.04 0.002Is this a one-tailed or two-tailed test?a.b.What is the null hypothesis?Can Ho be rejected at the 1% level? How can you tell?C.d.Use the output and an appropriate table to compute the P-value for the test of Ho: µ 26.5 versus H1: µ < 6.5.Use the output and an appropriate table to compute a 99% confidence interval for µ.e.

Answered: Image /qna-images/answer/d37004a2-4d85-4d21-9c5d-6d12a273555a.jpg

Answered: The following MINITAB output presents…

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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A random sample of 10 professional athletes produced the following data where X is the number of endorsements the player has and Y is the amount of money made (in millions of dollars). Use the 4 steps of hypothesis testing to see if the prediction is significant with a criteria of alpha=.05 on the following data. x y 0 2 3 8 2 7 1 3 5 13 5 12 4 9 3 9 0 3 4 10
A group of high-risk automobile drivers (with three moving violations in one year) are required, according to random assignment, either to attend a traffic school or to perform supervised volunteer work. During the subsequent five-year period, these same drivers were cited for the following number of moving violations: NUMBER OF MOVING VIOLATIONS TRAFFIC SCHOOL VOLUNTEER WORK 0 26 0 7 15 4 9 1 7 1 0 14 2 6 23 10 7 8 Why might the Mann–Whitney U test be preferred to the t test for these data? Use U to test the null hypothesis at the .05 level of significance. Specify the approximate p-value for this test result.
which of the following statements is true if when using null hypothesis testing, our p value (in the sig column of spss output) is 0.069? -reject the null hypothesis -daily to reject the null hypothesis -reject the alternative hypothesis -fail to reject the alternative hypothesis
Recently, the annual number of driver deaths per 100,000 for the selected age groups was as follows: Age Number of Driver Deaths per 100,000 16–19 38 20–24 36 25–34 24 35–54 20 55–74 18 75+ 28 Use the 4 steps of hypothesis testing to see if the prediction is significant with a criteria of alpha=.05 on the following data For each age group, pick the midpoint of the interval for the X value. (For the 75+ group, use 80.)
The following display from a TI-84 Plus calculator presents the results of a hypothesis test for a population mean μ.u<52 t=-4.479421 p=0.000020 x=51.87 Sx=0.21523 n=55Do you reject H0 at the a=0.10 level of significance? Question 5 options: No Yes
The test statistic of z=2.26 is obtained when testing the claim that p≠0.659. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of α=0.01, should we reject H0 or should we fail to reject H0?
An independent-measures research study uses two samples, each with n = 10 participants. If the data produce a t statistic of t = 2.095, which of the following is the correct decision for a two-tailed hypothesis test? a. Reject the null hypothesis with α = .05 but fail to reject with α = .01 b. Reject the null hypothesis with either α = .05 or α = .01 c. Retain the null hypothesis with either α = .05 or α = .01 d. Cannot answer without additional information
In a random sample, 12 of 14 industrial accidents weredue to unsafe working conditions. Use the 0.01 level ofsignificance to test the null hypothesis θ = 0.40 againstthe alternative hypothesis θ Z 0.40.
To evaluate the effect of a treatment, a sample is obtained from a population with a mean of m = 20, andthe treatment is administered to the individuals in thesample. After treatment, the sample mean is found tobe M = 21.3 with a variance of s2= 9.a. Assuming that the sample consists of n = 16individuals, use a two-tailed hypothesis test witha = .05 to determine whether the treatment effectis significant and compute both Cohen’s d and r2to measure effect size. Are the data sufficient toconclude that the treatment has a significant effectusing a two-tailed test with a =.05?b. Assuming that the sample consists of n = 36 individuals, repeat the test and compute both measuresof effect size.c. Comparing your answers for parts a and b, howdoes the size of the sample influence the outcomeof a hypothesis test and measures of effect size?
An electrical engineer wishes to determine if, among two specific municipal buildings in town, Building “North” and Building “South”, whether the tensile strength of pipes (in psi) is not the same in each of these two buildings. A sample of pipes was chosen at random from both Building “North” and Building “South”, respectively. Using α = 0.05, which of the following statistical test, or parameter, would be best for determining whether tensile strength of pipes (in psi) is not the same in each of these two buildings? (Assume all statistical assumptions met.) a) Binomial Distribution b) Population Difference in Means (i.e., Unpaired Data) c) The Chi-Squared Test of Independence d) Population Mean Difference (i.e., Paired Data)
A sample of n = 25 scores produces a t statistic of t = +2.052. If the researcher is conducting a single-sample two-tailed hypothesis test, which of the following is the correct statistical decision?
An independent-measures research study uses two samples, each with n = 15 participants. If the data produce a t statistic of t = 2.760, which of the following is the correct decision for a two-tailed hypothesis test? a. Reject the null hypothesis with α = .05 but fail to reject with α = .01 b. Reject the null hypothesis with either α = .05 or α = .01 c. Fail to reject the null hypothesis with either α = .05 or α = .01 d. Cannot answer without additional information

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