KFor the following claim, find the critical value. Assume that a simple random sample has been selected from a normally distributed population.Claim: The mean IQ score of statistics professors is greater than 130Sample data: n=28, x= 136, s = 13. The significance level is a = 0.01.Click the icon to view a table of critical t-values.Find the critical value using a t-distribution table.OA. 2.763O B. 2.771OC. 2.473OD. 2.467...W

given data, normal distribution,n=28x¯=136s=13α=0.01claim: μ>130df=n-1=28-1=27critical value:tc:=tα/2,df=t0.01/2,27=2.771 [from excel function , code :=TINV(0.01,27)] Critical value =2.771 option b 2.771 is correct option

Answered: For the following claim, find the…

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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In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. In the following data pairs, A represents the cost of living index for utilities and B represents the cost of living index for transportation. The data are paired by metropolitan areas in the United States. A random sample of 46 metropolitan areas gave the following information. Do the data indicate that the U.S. population mean cost of living index for utilities is less than that for transportation in these areas? Use α = 0.05. (Let d = A − B.) (a) What is the level of significance? (b)What is the value of the sample test statistic? (Round your answer to three decimal places.)
q3- For categorical data: Select one or more: a. We can't apply boxplot to show its distribution b. We can apply aggregate functions. c. We can't use histogram to show its distribution. d. The interval between units is the same.
The accompanying data represent the miles per gallon of a random sample of cars with a three cylinder 1.0 liter engine
Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.05 to test for a difference between the weights of discarded paper (in pounds) and weights of discarded plastic (in pounds). E Click the icon to view the data. In this example, Hg is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the weight of discarded paper minus the weight of discarded plastic for a household. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: Ha = 0 H,: Ha #0 O B. Ho: Ha #0 H1: Hd =0 O C. Ho: Ha #0 O D. Ho: Ha = 0 H1: Hd 0
Consider the data from the Anthropology 105 class. The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?
Among applicants to a school of public health, the average GRE writing score was about 3, the SD was about 0.5, and the lowest score was 2.5. True or False: the GRE writing scores follow the normal curve. Select one: True False Brevious page Next page C
For the following scores from a sample: a. Compute the mean, median and mode for the scores. b. Compute the SS, variance and SD. X f 7 1 6 2 5 2 4 2 3 1 MacBook Air
please answer this question.. my homework is due in and im so confused .. please help Data table X Jard position, Autopitc executive Neil Geism Sample Size, n Mean Factor, Upper Range, DA Lower Range, D3 A2 1.880 3.268 3 1.023 2.574 4. 0.729 2.282 0.577 2.115 0.483 2.004 0.419 1.924 0.076 8. 0.373 1.864 0.136 0.337 1.816 0.184 10 0.308 1.777 0.223 12 0.266 1.716 0.284 Refer to the table EaclorSOComouino Conrokch LmiKEama for this problem. Autopitch devices are made for both major- and minor-league teams to help them improve their batting averages. When set at the standard position, Autopitch can throw hardballs toward a batter at an average speed of 53 mph. To monitor these devices and to maintain the highest quality, Autopitch executive Neil Geismar takes samples of 9 devices at a time. The average range is 4 mph. a) Using this information, construct control limits for the x-chart. UCL,-mph (round your response to three decimal places). LCL, mph (round your response to three decimal…
Refer to the figure at the right. At a= 0.10, can you reject the claim that the proportion of 18 to 24-year-olds living in their parents' homes in 2000 was the same for men and women? Assume the survey included a random sample of 270 men and 278 women. Percentage of 18- to 24-year olds living in parents' homes 70, 60.4% 45% 54.6% 50.3% 2000 2012 Men Women Identify the null and alternative hypotheses. Choose the correct answer below. O B. Ho: P, * P2 Ha: P1 = P2 OD. Ho: P1 > P2 YA. Ho: P1 = P2 H3: P, * P2 OC. Ho: P, P2 Ha: P, SP2 Find the critical value(s). The critical value(s) is(are). (Round to two decimal places as needed. Use a comma to separate answers as needed.)
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