To test Ho: H= 100 versus H,: u#100, a simple random sample size ofn=20 is obtained from a population thatknown to be normally distributed. Answer parts (a)-(d).E Click here to view the t-Distribution Area in Right Tail.(a) If x= 105.2 and s= 8.9, compute the test statistic.t= (Round to three decimal places as needed.)(b) If the researcher decides to test this hypothesis at the a = 0.01 level of significance, determine the critical values.The critical values are(Use a comma to separate answers as needed. Round to three decimal places as needed.)(c) Draw a t-distribution that depicts the critical region(s). Which of the following graphs shows the critical region(s) in the t-distribution?O A.О в.Oc.(d) Will the researcher reject the null hypothesis?O A. The researcher will reject the null hypothesis since the test statistic is between the critical values.O B. There is not sufficient evidence for the researcher to reject the null hypothesis since the test statistic is not between the critical values.O C. The researcher will reject the null hypothesis since the test statistic is not between the critical values.O D. There is not sufficient evidence for the researcher to reject the null hypothesis since the test statistic is between the critical values.O Time Remaining: 01:58:58MacBook ProG Search or type URL!@$%&123457QWET.Ytab

Answered: Image /qna-images/answer/e7f3b908-76d9-4617-8f6e-853fa2086ddf.jpg

Answered: E Click here to view the t-Distribution…

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 study asked respondents, "If ever married, how old were you when you first married?" The results are summarized in the technology excerpt that follows. Complete parts (a) through (d) below. One-Sample T: AGEWED Mean Variable StDev SE Mean 99.0% CI AGEWED 26140 23.740 4.668 0.029 (23.666, 23.814) Click the icon to view the table of critical t-values. (a) Use the summary to determine the point estimate of the population mean and margin of error for the confidence interval. x = 23.740 (Type an integer or a decimal. Do not round.) E=0.7437 (Type an integer or a decimal. Do not round.) (b) Interpret the confidence interval.
#12). Please show how you solved the problem. Circle answers. Q2 is already provided.
Assume that you want to test the claim that the paired smaple data come from a population for which the mean difference is population mean d=0. Compute the value of the t test statistic. Round intermediate calculations to four decimal places as need and final answers to three decimal places as needed x 9 6 7 5 12 y 6 8 3 6 7
The price X (dollars per pound) and consumption y (in pounds per capita) of beef were samples for 10 randomly selected years. The following data should be used to answer the question that follows. n = 10 Ex = 36.19 Ix² = 134.17 2.9 < x s 6.2 Ey = 774.7 Iy² = 60739.23 Exy = 2832.21 Using this data, a student calculated SSy = 28.43 SSx = 3.2 SSy= 717. Calculate the %3D %3D value of the standard error or regression, Se , and enter you answer accurate to the nearest hundredth (2 decimal places).
Use the provided information to calculate the t statistic and critical t values.
K A company is developing a new high performance wax for cross country ski racing. In order to justify the price marketing wants, the wax needs to be very fast. Specifically, the mean time to finish their standard test course should be less than 55 seconds for a former Olympic champion. To test it, the champion will ski the course 8 times. The champion's times (selected at random) are 54.9, 63.7, 48.1, 53.9, 49.3, 47.4, 53.7, and 44.9 seconds to complete the test course. Should they market the wax? Assume the assumptions and conditions for appropriate hypothesis testing are met for the sample. Use 0.05 as the P-value cutoff level. Choose the correct null and alternative hypotheses below. Ο A. Ho:μ = 55 HAH55 Calculate the test statistic. ... t= OB. Ho:μ>55 HA:μ = 55 OD. Ho:μ<55 HAH=55 (Round to three decimal places as needed.) Calculate the P-value. P-value= (Round to four decimal places as needed.) Choose the correct clusion below. A. No, do not market the wax as there is insufficient…
touch ".llE 55% D14:52 Question Measurements for the length and width of a rectangular plastic covers for CDs are Tounded to the nearest mm (so they are discrete). Let X denote the length and Y dente the width. The possible values of X are 129, 130, and 131 mm. The possible values of Y are 15 and 16 mm. The joint distribution is given by the following table X-length 129 130 131 Y=width 15 0.12 0.42 006 16 0.08 0.28 0.04 The probability that a CD cover has width of 16 mm knowing that it has a length of 131 mm is O 0.13 O 0.2 O 0.4 O 0.08
Calculate the t-test statistic for correlation. t= (Round to four decimal places as needed.) Determine the critical value(s) for the rejection region for the test statistic t. Select the correct choice below and fill in the answer box to complete your choice (Round to four decimal places as needed.) O A. to01- B. to 005 = + O C. to 01= Click to select your answer(s).
I need #4 answered
Calculate the correct t-statistics based on the information below. X1 = 200 X2 = 198 n1 = 17 n2 = 17 s1 = 2.45 s2 = 2.35 Let us assume that two groups of students at Tarleton are being compared on their average weights. Do you think the groups are different in terms of weight (measured in pounds)?
A student wants to determine if there is a difference in the pricing between two stores for health and beauty supplies. She recorded prices from both stores for each of 10 different products. Assuming that the conditions for conducting the test are satisfied, determine if there is a price difference between the two stores. Use the α = 0.1 level of significance. Complete parts (a) through (d) below. A B C D E F G H I J 5.95 7.41 3.76 1.74 1.78 2.88 4.72 3.13 2.98 3.75 Store 1 Store 5.97 7.95 3.94 1.78 1.92 2.49 4.71 3.74 2.95 3.69 2 (a) What type of test should be used? Choose the correct answer below. A. A hypothesis test regarding the difference of two means using a matched-pairs design. B. A hypothesis test regarding two population standard deviations. OC. A hypothesis test regarding the difference between two population proportions from independent samples. OD. A hypothesis test regarding the difference of two means using Welch's approximate t. (b) Determine the null and alternative…
Is the average time to complete an obstacle course longer when a patch is placed over the right eye than when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 46 48 42 50 46 43 50 41 Left 45 46 42 50 46 39 50 37 Assume a Normal distribution. What can be concluded at the the a = 0.05 level of significance level of significance?

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