https://hancockcollege.instructure.com/courses/2177802/assignments/13744607O YouTubeA MapsTranslateonsTest the claim that the mean salary in a town is at least $69000. A random sample 37 salaries yields aaverage of $68391.72. Use a = 0.01, and assume that o = $1000.1. The sample size restriction for this test is:O None needed since population is normally distributedNeed n > 30O Need at least 5 successes and 5 failuresutorThe hypotheses are:arthinking OnlinepringO Ho:u < 69000; Ha:u > 69000ogle DriveO Ho:µ = 69000; Ha:u 69000O Ho:p 69000; Ha:p < 69000O Ho:p = 69000; Ha:p 69000ifice 365ollett DiscoverO Ho:p < 69000; Ha:p >Secure Exam ProctorO Ho:u > 69000; Ha:p < 69000SuccessNetHancock Zoom2. This is a O leftO twoO right tailed test and the distribution used isOT since o not knownCirclelnOZ since testing a proportionOZ since o knownThe Degrees of Freedom areO 36O 37ON/A since this is a Z-test3. The STS (round to 3 decimals) is:MacBook AirF2O00F64.7 N/A SInce this is a 2-test3. The STS (round to 3 decimals) is:The P-value (round to 4 decimals) is:4. The decision at a = 0.01 is:O Reject Ho since P< aO Do not reject Ho since P aO Reject Ho since P> aThe conclusion is:O There is sufficient evidence to support the claim that the mean saary is at least $69000O There is insufficient evidence to reject the claim that the mean salary is at least $69000O There is insufficient evidence to support the claim that the mean salary is at least $69000O There is sufficient evidence to reject the claim that the mean salary is at least $69000Submit QuestionMacBook Air

1. 2. This corresponds to a left-tailed test.

Test the claim that the mean salary in a town is at least $69000. A random sample 37 sala average of $68391.72. Use a = 0.01, and assume that o = $1000. 1. The sample size restriction for this test is: O None needed since population is normally distributed O Need n 2 30 O Need at least 5 successes and 5 failures

Test the claim that the mean salary in a town is at least $69000. A random sample 37 sala average of $68391.72. Use a = 0.01, and assume that o = $1000. 1. The sample size restriction for this test is: O None needed since population is normally distributed O Need n 2 30 O Need at least 5 successes and 5 failures

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Use an appropriate test to determine the goodness of fit of the data at 5%level of significance for the results from flipping a coin.Number ofHeads(x)Pr(xheads)ExpectedfrequencyObservedfrequency0 0.0332 33 381 0.1619 162 1442 0.3162 316 3423 0.3087 309 2874 0.1507 151 1645 0.094 29 25
a-d
Independent random samples from normal populations produced the results shown in the table to the right. Complete parts a through d below. a. Calculate the pooled estimate of o?. (Round to four decimal places as needed.) Sample 1 2.2 1.2 3.3 1.1 2.9 Sample 2 2.9 3.3 2.9 3.4
show solution
1. Tornadoes The claim is that for the widths (yd) of tornadoes, the mean is m 6 140 yd. The sample size is n = 21 and the test statistic is t = -0.024.
I need to know what x-bar, SS, Σx2 and so that I can solve the problem. I already know what T, n, k, N, and G are.
A researcher estimates that the average height of the buildings of 30 or more stories in a large city is at least 700 feet. A random sample of 10 buildings is selected, and the heights in feet are shown. At a = 0.025, is there enough evidence to reject the claim? 485 520 511 535 841 635 725 616 615 582
prilame Performance Task: You are apart-time crew at a fast food chain. Suppose you serve a certain number of customers every hour. Assume the number of people you have served in 3 hours and let this be your population (choose three numbers only). Assume that samples of size n = 2 are randomly selected without replacement from the population. Find the population mean u and the mean ug of the sampling distribution of the means. nimets el eiTT olemeieq A A. Population: B. Population Mean: C. Means of Samples Drawn without Replacement from the Population (your choice of numbers) (Show solution) ot ort lo roirW Observation Sample Mean of the Sampling Distribution of the Sample Mean: (Show solution)
You are given the following information obtained from a random sample of 5 observations. Assume the population has a normal distribution 20 18 17 22 18 You want to determine whether or not the mean of the population from which this sample was taken is equal to 21. Determine the test statistic value?
A simple random sample is taken from a population and yields the following data for a variable of the population. 10 38 17 33 31 12 12 17 31 27 Find a point estimate for the population mean (that is, the mean of the variable). A point estimate for the population mean is. (Round to one decimal place as needed.)
Find the test statistic, t, to test the hypothesis that u, = H,. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below. Round to three decimal places. n= 14 X = 21 n2 = 12 X2 = 22 S1=2.5 $2 = 2.8 A. -0.909 B. - 0.954 C. -1.558 D. -0.915 Click to select your answer. 02/16/21 Ch 2.1 Homework P Type here to search 99+ a Gip 立

Find the test statistic, t, to test the hypothesiis that p, = ,. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below. Round to three decimal places, n,=25 n, = 30 X, =32 X2 = 30 $=1.5 %3D $2=1.9 O A. 1.986 O B. 4.361 O C. 2.892 券 O D. 3.287 Click to select your answer. 02/16/21 ch 2.3 Homework a 99+