Question

An article reports that a 95% confidence interval for the difference of two means ux -...

An article reports that a 95% confidence interval for the difference of two means ux - uy is (-5, 4.5). What can you conclude about the two sided test of Ho: ux - uy = 0 vs Ha : ux - uy (does not equal) 0?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #2

Solution:

The null and alternative hypothesis are

Ho: ux - uy = 0 vs Ha : ux - uy 0

95% confidence interval for the difference of two means ux - uy is (-5, 4.5).

Hypothetical value 0 is inside the interval (-5, 4.5)

So ,

Fail to reject Ho: ux - uy = 0

Conclusion:

There is not sufficient evidence to support the claim that there is significant difference between two means and   .

answered by: anonymous
0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Find a 95% confidence interval for the difference between the two population means.
Find a 95% confidence interval for the difference between the two population means.
A confidence interval for a sample is given, followed by several hypotheses to test using that...
A confidence interval for a sample is given, followed by several hypotheses to test using that sample. In each case, use the confidence interval to give a conclusion of the test (if possible) and also state the significance level you are using.      A 99% confidence interval for μ :120 to 168 a) Ho: μ = 104 vs Ha: μ ≠ 104 Conclusion _____ Ho (reject or do not reject) Significance level: _______ (10%, 5%, 95%, 1%, 90% or 99%)...
The MINITAB printout shows a test for the difference in two population means. Two-Sample T-Test and...
The MINITAB printout shows a test for the difference in two population means. Two-Sample T-Test and CI: Sample 1, Sample 2 Two-sample T for Sample 1 vs Sample 2      N Mean StDev SE Mean Sample 1 5 29.00 3.00 1.3 Sample 2 7 28.89 3.63 1.4 Difference = mu (Sample 1) - mu (Sample 2) Estimate for difference: 0.11 95% CI for difference: (-4.3, 4.5) T-Test of difference = 0 (vs not =): T-Value = 0.06 P-Value = 0.96...
Find the 95% confidence interval for the difference between two means based on this information about...
Find the 95% confidence interval for the difference between two means based on this information about two samples. Assume independent samples from normal populations. (Use conservative degrees of freedom.) (Give your answers correct to two decimal places.) Sample Number Mean Std. Dev. 1 17 40 26 2 30 26 27 Lower Limit Upper Limit You may need to use the appropriate table in Appendix B to answer this question.
Find the 95% confidence interval for the difference between two means based on this information about...
Find the 95% confidence interval for the difference between two means based on this information about two samples. Assume independent samples from normal populations. (Use conservative degrees of freedom.) (Give your answers correct to two decimal places.) Sample Number Mean Std. Dev. 1 21 34 29 2 25 23 27 Lower Limit Upper Limit
Suppose you calculate a 95% confidence interval for the difference in population means. The confidence interval...
Suppose you calculate a 95% confidence interval for the difference in population means. The confidence interval contains both negative and positive values. Will a 99% confidence interval based on the same data contain both negative and positive numbers as well? Choose the correct response from the options provided below. Yes. Keeping all other values the same, increasing the confidence level leads to a wider interval which would still include negative and positive numbers. No. Increasing the confidence level leads to...
Suppose you calculate a 95% confidence interval for the difference in population means. The confidence interval...
Suppose you calculate a 95% confidence interval for the difference in population means. The confidence interval contains both negative and positive values. Will a 99% confidence interval based on the same data contain both negative and positive numbers as well? Choose the correct response from the options provided below. A. Yes. Keeping all other values the same, increasing the confidence level leads to a wider interval which would still include negative and positive numbers. B. No. Increasing the confidence level...
In order to compare the means of populations, independent random samples of 390 observations are selected...
In order to compare the means of populations, independent random samples of 390 observations are selected from each population, with the results found in the table below x1=5283, x2=5242, s1=143, s2=194 Use a​ 95% confidence interval to estimate the difference between the population means (u1-u2) a) find the confidence interval b) Test the null hypothesis Ho: (u1-u2)=0 vs the alternative hypothesis Ha: (u1-u2)=/=0. Use a=0.05. What is the test statistic? What is the p-value? c) Test the null hypothesis Ho:...
To compare two population means, two independent sample data are used to construct a confidence interval...
To compare two population means, two independent sample data are used to construct a confidence interval and perform a two-sided significance test to obtain a P-value. Explain what you could learn from a confidence interval comparing the means that you are not able to learn from a Pvalue.
You want to calculate a 95% confidence interval (CI) for the difference between the means of...
You want to calculate a 95% confidence interval (CI) for the difference between the means of two variables. The variables are from populations with normal distributions and those distributions have the same standard deviation (σ). To make your estimate you will take the same number of samples from each population, calculate the mean for each sample, calculate the difference between those sample means, and then add or subtract the term that defines the CI. If you want the width of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT