Answered: As such, the final conclusion is… | bartleby

MATLAB: An Introduction with Applications

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

Related questions

Question

You wish to test the following claim (Ha) at a significance level of a = 0.001.
H.:µ = 61.7
Ha:µ > 61.7
You believe the population is normally distributed, but you do not know the standard deviation. You
obtain a sample of size n =
11 with mean M
68.5 and a standard deviation of SD = 5.8.
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
less than (or equal to) a
greater than a
This p-value leads to a decision to...
O reject the null
accept the null
O fail to reject the null
O O

As such, the final conclusion is that...
There is sufficient evidence to warrant rejection of the claim that the population mean is
greater than 61.7.
O There is not sufficient evidence to warrant rejection of the claim that the population mean is
greater than 61.7.
O The sample data support the claim that the population mean is greater than 61.7.
O There is not sufficient sample evidence to support the claim that the population mean is
greater than 61.7.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

You wish to test the following claim (Ha) at a significance level of a = 0.05. H.:µ = 84.3 Ha:µ + 84.3 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size 'n= 15 with a mean of M = 70.4 and a standard deviation of SD = 17.4. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = + What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =
Express the alternative hypothesis in symbolic form. A psychologist claims that the mean amount of time (in hours) that females spend in talk therapy is more than that of men. Assume that two samples are independent. Let the female talk therapy times be the first population and the male talk therapy times be the second population.
You wish to test the following claim (H) at a significance level of a = 0.005. For the context of this problem, Hd = H2 - H1 where the first data set represents a pre-test and the second data set represents a post-test. H.: Ha = 0 H.: Ha + 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = difference (post - pre) is d 15 subjects. The average = 32.6 witha standard deviation of the differences of 31.6. || What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = ± What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = The test statistic is... O in the critical region O not in the critical region This test statistic leads to a decision to... O reject the null accept the null O fail to reject the null
Also need to find the standardized test statistic, decide whether to reject or fail to reject, and interpret the decision in the context of the claim.
2. When we carry out a 1-sample hypothesis test for the mean, one of the ways that we can check for normality is to look at the normal plot. How do we know if our normality assumption is satisfied by looking at the normal plot? Be as specific as possible.
Reebok is analyzing all the data from different stores across the globe to shut down the stores which are not having profit.After a lot of analysis, the mean and standard deviations were found. What is the percentage of distribution which is expected within two standard deviations from the mean to each side? Choose : A) 68% B) 65% C) 99.7% D) it depends on how big the sample size is.
You wish to test the following claim (H) at a significance level of a = 0.05. For the context of this problem, d = 2-1 where the first data set represents a pre-test and the second data set represents a post-test. Ho: Pd = 0 Ha: d < 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 301 subjects. The average difference (post-pre) is d = 2.4 with a standard deviation of the differences of sa = 22.7. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = L What is the P-value for this test? (Report answer accurate to four decimal places.) P-value = The P-value is... O less than (or equal to) a O greater than a This P-value leads to a decision to... O reject the null O accept the null O fail to reject the null
1.) Suppose that a teacher wants to see if a new teaching method improves test scores in their class. Luckily, they also know that the average score of all students in the United States in that grade is 85 and the sd is 10. Given that their class of 25 students’ (the sample) Mean score is 90... What is the standard error? 1 2 1.5 2.5 ----------------------------------------- 2.) Calculate the standardized effect size for question 1. What can you say about this effect size? It is a small effect size It is a moderate effect size It is a large effect size Cannot calculate the standardized effect size with the information given. ------------------------------------------------------------------------------------- 3.) Students have taken an exam. The mean was 70 and the standard deviation was 2. A student who scored 72, scored better than: 84% 30% 20% 99%…
A. There is sufficient evidence to support the claim that the mean is less than 32 miles per gallon. O B. There is not sufficient evidence to support the claim that the mean is less than 32 miles per gallon. O C. There is not sufficient evidence to support the claim that the mean is greater than 32 miles per gallon. O D. There is sufficient evidence to support the claim that the mean is greater than 32 miles per gallon.
f. The p-value for this sample = i. Thus, the final conclusion is A. There is insufficient evidence to conclude that the distribution of die rolls is not uniform. B.There is insufficient evidence to conclude that the die rolls are dependent. C.There is sufficient evidence to conclude that the distribution of die rolls is not uniform. D. There is sufficient evidence to conclude that the die rolls are dependent.
How do we determine the type of probability distribution to use for a given set of data?
1. Americans consume an average of 70 hot dogs per year. A researcher is skeptical of that value and randomly samples 600 people and computes a sample mean of 68.3 hot dogs. a. Which value above is a parameter and which is a statistic? b. If tomorrow you were going to sample 60 people, around what value do you think the sample mean will be? Do you think it will be exactly that value?

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

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 for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

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 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…

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

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

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