HomeworkLib
Question

Based on sample data, the 90% confidence interval limits for the population mean are LCL =...

Based on sample data, the 90% confidence interval limits for the population mean are LCL = 170.86 and UCL = 195.42. If the 10% level of significance were used in testing the hypotheses H0: μ = 201 vs. H1: μࣔ 201, the null hypothesis: Group of answer choices

would be rejected. would be accepted. would fail to be rejected. would become H0: μࣔ 201

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

NULL HYPOTHESIS H0:

ALTERNATIVE HYPOTHESIS Ha:

The 90% confidence interval is (170.86,195.42)

Since the 90% confidence interval does not conatin true Population mean therefore SIGNIFICANT .

Decision: REJECT NULL HPOTHESIS H0.

0 0
Add a comment
Know the answer?
Add Answer to:
Based on sample data, the 90% confidence interval limits for the population mean are LCL =...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A random sample is drawn from a distribution and the resulting population mean confidence interval for...

    A random sample is drawn from a distribution and the resulting population mean confidence interval for 90% confidence level is (32.5, 38.1). The null hypothesis for the population mean is H0: μ = 33.3. Should it be accepted at 5% significance level? Justify your answer.

  • A 95% confidence interval for a population mean was calculated. The sample mean was found to...

    A 95% confidence interval for a population mean was calculated. The sample mean was found to be 34.5 and the MOE was found to be 4.06 giving us a confidence interval of 34.5±4.06 or equivalently written as 30.44 to 38.56. (a) For the hypotheses H0:?=30 Ha:??30, would you reject the null hypothesis at the 5% level of significance (i.e. ? = 0.5)? (Type: YES or NO or CANNOT TELL): (b) For the hypotheses H0:?=41 Ha:??41, would you reject the null...

  • sample mean = 213.4552 sample Standard deviation = 44.81542 N=50 alpha = .05 SEM = 6.337857477...

    sample mean = 213.4552 sample Standard deviation = 44.81542 N=50 alpha = .05 SEM = 6.337857477 For each of the following hypothesis testing problems, manually calculate the t-statistic, use the 5% level of significance (alpha = 0.05), determine the rejection region, determine the p-value of the t-test, use the 95% confidence interval in part (c) to make a decision about whether or not to reject the null hypothesis. Test the null hypothesis that the true mean is 225 versus the...

  • If the 95% confidence interval limits for the population mean are 70 and 80, which of...

    If the 95% confidence interval limits for the population mean are 70 and 80, which of the following could be the 90% confidence interval limits? Please justify your answer.

  • A statistician constructed a confidence interval for the mean μ of a population and the result...

    A statistician constructed a confidence interval for the mean μ of a population and the result was the interval (25,30). Which of the following statements is/are true? There is a 0.9 probability μ is between 25 and 30. If 100 random samples of the same size are picked and a 90% confidence interval is calculated from each one, then μ will be in 90 of those 100 confidence intervals. If 90% confidence intervals are calculated from all possible samples of...

  • Based on the sample data, the P-value for a two-sided test of the null hypothesis H0:μ=10H0:μ=10...

    Based on the sample data, the P-value for a two-sided test of the null hypothesis H0:μ=10H0:μ=10 vs. H1:μ≠10H1:μ≠10 is 0.06. Which of the following statements is correct? A. the 95% confidence interval includes the value 10 B. the 68% confidence interval includes the value 10 C. the 90% confidence interval includes the value 10 D. None of the above

  • 1.) Assume that a sample is used to estimate a population proportion p. Find the margin...

    1.) Assume that a sample is used to estimate a population proportion p. Find the margin of error m that corresponds to the given statistics and confidence level. Round the margin of error to four decimal places. 95% confidence; n = 380, x = 50 Group of answer choices 0.0340 0.0408 0.0306 0.0357 2.) Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A researcher claims that 62% of voters favor gun control. Assuming that...

  • 1)The confidence level in a confidence interval for µ is a. the probability that the interval...

    1)The confidence level in a confidence interval for µ is a. the probability that the interval contains µ. b. the probability that the interval does not contain µ. c. the probability of type I error for the associated hypothesis testing problem. d. the probability of type II error for the associated hypothesis testing problem. e. the approximate proportion of intervals which contains µ when a large number of confidence intervals is obtained by repeating the sampling experiment. 2)In a hypotheses...

  • A 95% confidence interval for a population mean is (28, 38). Can you reject the null...

    A 95% confidence interval for a population mean is (28, 38). Can you reject the null hypothesis that μ = 24 at the 5% significance level? (Possible answers: Yes, No, Unable to determine).

  • Based on a sample of data, a researcher forms a confidence interval for the population mean...

    Based on a sample of data, a researcher forms a confidence interval for the population mean mu that extends from 2.5 to 7.3 at the 95% confidence level. She then wishes to test Ho: mu = 3 against Ha: mu3 at the .05 level of significance. What can she conclude based on this confidence interval? confidence must be at the 90% level O retain Ho O the data must be false O reject Ho

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT