6The test statistic of z = -2.47 is obtained when testing the claim that p<7. This is a left-tailed test. Using a 0.01 significance level, complete parts (a) and (b).Click here to view the standard normal distribution table for negative z scores. Click here to view the standard normal distribution table for positive z scores.a. Find the critical value(s).Select the correct choice below and fill in the answer box(es) within your choice.(Round to two decimal places as needed.)O A. There are two critical values; the lower critical value isOB. There is one critical value; the critical value isb. Should we reject Ho or should we fail to reject Ho?and the upper critical value isO A. Ho should be rejected, since the test statistic is in the critical region.O B. Ho should not be rejected, since the test statistic is not in the critical region.O C. Ho should be rejected, since the test statistic is not in the critical region.O D. Ho should not be rejected, since the test statistic is in the critical region.C

Answered: Image /qna-images/answer/afddeb6a-1d16-47c2-8890-628f4c207b37.jpg

Answered: 6 The test statistic of z= -2.47 is…

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

Data on the weights of the contents of cans of diet soda versus the contents of regular soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts a and b below. Use a 0.5 significance level for both. A. Test the claim that the contents of cans of diet soda have weights with a mean that is less than the mean for the regular soda. What are the null and alternative hypotheses? The test statistic, t, is: (round to two decimal places as needed)
8 The test statistic of z = -2.88 is obtained when testing the claim that p<. This is a left-tailed test. Using a 0.10 significance level, complete parts (a) and (b). Click here to view the standard normal distribution table for negative z scores. Click here to view the standard normal distribution table for positive z scores. a. Find the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to two decimal places as needed.) A. There is one critical value; the critical value is B. There are two critical values; the lower critical value is and the upper critical value is
Use the pulse rates in beats per minute (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 75 bpm. Use a 0.05 significance level. A. Determine the test statistic. (Round to two decimal places as needed.) B. Determine the P-value. (Round to three decimal places as needed.)
K In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.3 and a standard deviation of 17.5. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? OA. Ho: μ = 0 mg/dL H₁: μ#0 mg/dL OC. Ho: μ = 0 mg/dL H₁: μ> 0 mg/dL Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses…
Use the statistical table. Sixty gym members were randomly selected and their weights were recorded and inputted into MINITAB. The results are summarized in Exhibit 1 below. One-Sample Z: WeightTest of mu = 195 vs < 195The assumed standard deviation = 22.11 Variable N Mean StDev SE MeanWeight 60 193.13 22.11 * Test at a 10% signficance level. State the conclusion of this test. Give a reason for your answer. Show all workings.
A Math instructor believes that the mean score on the first Math test will be at least 75. He randomly selected 10 Math student scores to get the following results X 65 S-7.03 Assume that the population of test scores is normally distributed. The instructor wants to check whether the mean soore is at least 75% using a level of significance of 5%. Which of the following shaded area represents the rejection zone: Option 1 Option 2 Option 3 O Option 4
Words were displayed on a computer screen with background colors of red and blue. Results from scores on a test of word recall are given below. Use a 0.05 significance level to test the claim that the samples are from populations with the same standard deviation. Assume that both samples are independent simple random samples from populations having normal distributions. Does the background color appear to have an effect on the variation of word recall scores? n x s Red Background 35 15.86 5.95 Blue Background 37 12.11 5.43 What are the null and alternative hypotheses? what is the test statistic? (F =?) what is the P-value? does the background color appear to have an effect on the variation of word recall scores?
Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. Male BMI Female BMI u u1 u2 n 46 46 x 28. 4773 26. 3875 s 7. 618885 5. 488392
Suppose a sample of O-rings was obtained and the wall thickness (in inches) of each was recorded. Use a normal probability plot to assess whether the sample data could have come from a population that is normally distributed. Click here to view the table of critical values for normal probability plots. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Using the correlation coefficient of the normal probability plot, is it reasonable to conclude that the population is normally distributed? Select the correct choice below and fill in the answer boxes within your choice. (Round to three decimal places as needed.) O A. Yes. The correlation between the expected z-scores and the observed data, OB. No. The correlation between the expected z-scores and the observed data, O C. No. The correlation between the expected z-scores and the observed data, O D. Yes. The correlation between the expected z-scores and…
← The test statistic of z= -2.66 is obtained when testing the claim that p<0.56. a. Using a significance level of α = 0.05, find the critical value(s). b. Should we reject Ho or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. The critical value(s) is/are z= (Round to two decimal places as needed. Use a comma to separate answers as needed.) b. Choose the correct conclusion below. OA. Fail to reject Ho. There is sufficient evidence to support the claim that p < 0.56. B. Reject Ho. There is sufficient evidence to support the claim that p<0.56. OC. Fail to reject Ho. There is not sufficient evidence to support the claim that p <0.56. OD. Reject Ho. There is not sufficient evidence to support the claim that p <0.56. MacBook Air
4 The test statistic of z= -1.54 is obtained when testing the claim that p<. This is a left-tailed test. Using a 0.05 significance level, complete parts (a) and (b). Click here to view the standard normal distribution table for negative z scores. Click here to view the standard normal distribution table for positive z scores. a. Find the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to two decimal places as needed.) O A. There is one critical value; the critical value is OB. There are two critical values; the lower critical value is and the upper critical value is
The average American gets a haircut every 43 days. Is the average different for college students? The data below shows the results of a survey of 11 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 32, 46, 49, 45, 50, 49, 43, 45, 38, 46, 42 What can be concluded at the the a =0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Họ: ? Select an answer v H. Select an answer Y C. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value - (Please show your answer to 3 decimal places.) e. The p-value is 2 f. Based on this, we should Select an answer the null hypothesis, g. Thus, the final conclusion is that, The data suggest the populaton mean is significantly different from 43 ata = 0.01, so there is fficient evidence tr conrlide that -he nonulation.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS