a. state the null and alternative hypothesisb. find the rejection region and decision at a= .05 In a dieting program 8 participants were randomly selected and interviewed. Their weights as theyentered the program and their weights (in pounds) after 10 weeks are as follows:Before 214 211 195 153 165 168 175 180After 211 208 190 154 165 169 170 179The difference in the weights (before-after) for this sample results in d-1.875 and sa-2.475.Assume that the weights are approximately normally distributed.

In the given scenario, 8 people were chosen randomly for a weight program. Their weights were…

Answered: a. state the null and alternative…

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

As dfRC increases, what happens to the values of Cramer's V needed to achieve small, medium, and large effect sizes? a. The values depend on the sample size b. The values increase c. The values decrease d. The values stay the same
.A tourist wants to make a trip to a small city and visit the crowded shopping center. The city's mayor claims less that 10% of its residents are non- vaccinated against a very serious infectious disease. He is deciding whether to make a trip to the city's shopping center, so performs a hypothesis test to determine whether the city's mayor claim is true. 1. Let represent the proportion of the residents who are non-vaccinated, write the null and alternative hypothesis. 2. When will type 1 error occur in this situation? 3. When will type Il error occur in this situation? 4. Which error is more serious and risky in this situation? EXPLAIN
State the alternative hypotheses for the following claim: For Division I schools, less than 25% of them have a bulldog as their mascot. State the alternative hypotheses for the following claim: For Division I schools, less than 25% of them have a bulldog as their mascot. p = .25 p < .25 p ≥ .25 p ≤ .25
(c) Calculate the test statistic. d) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.
A simple random sample of 100 observations was taken from a large population . The sample mean and the variance was determined to be 80 and 144 respectively . The standard error of the sample mean is A) 0.80 B) 1.44 C) 1.20 D) 14.4
20. Which of the following is a null hypothesis? a. Pregnant women who drink cranberry juice will have lower urine bacterial counts than those who do not drink cranberry juice. b. The urine bacterial count of pregnant women who drink cranberry juice will be lower or equal to that of pregnant women who do not drink the juice. c. There will be a difference between ingestion of cranberry juice and among pregnant women who do and do not have high urine bacterial counts.
A study is designed to determine the effect of an office-training course on typing productivity. Fifteen typists who have not taken the course are randomly selected. The investigator assigns 20 pages of equally difficult text to be typed by each typist both before and after completing the training course. The investigator wants to find out whether the training course has reduced the number of errors by more than 10. Define d Before - After. What is the alternative hypothesis for this test? Ha: ud > 0 Ha: ud 10. Ha: ud 10 Ha: ud-10
A researcher believes that more than half of college students average less than 6 hours of sleep per night during the week. Suppose she collected data to test her belief and found a p-value < 0.0001. Fill in the information for her hypothesis test below. Type of test: a. Left-tail b. Right-tail c. Two-tail
Lillie conducts a hypothesis test and calculates that her sample results have a p-value of 0043, what decision can be made about the null hypothesis? O fail to reject the null O Reject the null
A plumber was interested in determining whether there is a significant difference in the price charged for plumbing tools by two hardware stores. The plumber selected five tools and recorded the price for each tool in each store. The following data was recorded: Store 1 2 Tool 2 R59.25 R22.50 R450 R44.25 R22.50 R36.75 R75 4 R480 R44.25 R60 Perform the appropriate test of hypothesis to determine whether there is a significant difference, on average, in the price of plumbing tools between the two stores, showing all 7 steps. Include both the rejection region and the p-value.
A statistical test is conducted to see if there is evidence that the proportion of US citizens who can name the capital city of Mexico is less than 0.6. Use the following possible sample results: Sample A: 19 successes out of 40 Sample B: 22 successes out of 40 Sample C: 24 successes out of 40 Sample D: 26 successes out of 40 State which of the possible sample results provides the most significant evidence for the claim. Sample B Sample D Sample C Sample A
Need help with #19

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

a. state the null and alternative hypothesis b. find the rejection region and decision at a= .05