Question

A sample of 64 observations is taken from a normal population known to have a standard...

A sample of 64 observations is taken from a normal population known to have a standard deviation of 13.7. The sample mean is 47.9. Calculate the test statistic to evaluate the hypothesis µ=46. Enter your answer to 2 decimal places.

A sample of 20 observations is taken from a normal population known to have a standard deviation of 17.3. The sample mean is 47.2. Calculate the test statistic to evaluate the hypothesis µ≤48. Enter your answer to 2 decimal places.

A sample of 20 observations is taken from a normal population known to have a standard deviation of 17.3. The sample mean is 47.2. Calculate the test statistic to evaluate the hypothesis µ≤48. Enter your answer to 2 decimal places.

Given the following null hypothesis H0: µ≤24.

A sample of 7 observations is taken from a normal population. The sample mean is 17.4 and the standard deviation  7.12. Calculate the test statistic to evaluate the hypothesis. Enter your answer to 2 decimal places.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
a sample of 49 observations is taken from a normal population with a standard deviation of...
a sample of 49 observations is taken from a normal population with a standard deviation of 10. The sample mean is 55. Determine the 99% confidence interval for the population mean. ( round you answers 2 decimal places)
A sample of 69 observations is selected from one population with a population standard deviation of...
A sample of 69 observations is selected from one population with a population standard deviation of 0.79. The sample mean is 2.69. A sample of 48 observations is selected from a second population with a population standard deviation of 0.67. The sample mean is 2.61. Conduct the following test of hypothesis using the 0.05 significance level: H0: μ1 – μ2≤ 0 H1: μ1 – μ2 > 0 a. State the decision rule. (Round the final answer to 2 decimal places.)...
A sample of 45 observations is selected from a normal population. The sample mean is 27,...
A sample of 45 observations is selected from a normal population. The sample mean is 27, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 26 H1: μ > 26 What is the decision rule? (Round your answer to 2 decimal places.) What is the value of the test statistic? (Round your answer to 2 decimal places.) What is the p-value? (Round your answer to 4 decimal places.)
Exercise 8-2 A sample of 43 observations is taken from a normal population with a standard...
Exercise 8-2 A sample of 43 observations is taken from a normal population with a standard deviation of 24. The sample mean is 43. Determine the 80% confidence interval for the population mean. (Round the final answers to 3 decimal places.) Confidence interval for the population mean is and . statistics
A sample of 10 observations is selected from a normal population for which the population standard...
A sample of 10 observations is selected from a normal population for which the population standard deviation is known to be 4. The sample mean is 24. (Round your answers to 3 decimal places.) (a) The standard error of the mean is . (c) The 99 percent confidence interval for the population mean is between ___ and ___.
A sample of 49 observations is selected from a normal population. The sample mean is 21,...
A sample of 49 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 20 H1: μ > 20 Is this a one- or two-tailed test? What is the decision rule? (Round your answer to 2 decimal places.) What is the value of the test statistic? (Round your answer to 2 decimal places.) What is your decision...
A sample of 30 observations is selected from a normal population. The sample mean is 22,...
A sample of 30 observations is selected from a normal population. The sample mean is 22, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.01 significance level. H0: μ ≤ 20 H1: μ > 20 What is the value of the test statistic? (Round your answer to 2 decimal places.) What is the p-value? (Round your answer to 4 decimal places.) Interpret the p-value? (Round your final answer to 2 decimal places.) (%...
A sample of 37 observations is selected from a normal population. The sample mean is 25,...
A sample of 37 observations is selected from a normal population. The sample mean is 25, and the population standard deviation is 5. Conduct the following test of hypothesis using the .05 significance level. H0 : μ ≤ 24 H1 : μ > 24 (a) Is this a one- or two-tailed test? "One-tailed"-the alternate hypothesis is greater than direction. "Two-tailed"-the alternate hypothesis is different from direction. (b) What is the decision rule? (Round your answer to 2 decimal places.) H0,when...
A random sample of 11 observations was taken from a normal population. The sample mean and...
A random sample of 11 observations was taken from a normal population. The sample mean and standard deviation are xbar= 74.5 and s= 9. Can we infer at the 5% significance level that the population mean is greater than 70? I already found the test statistic (1.66) but I’m at a loss for how to find the p-value.
A sample of 30 observations is selected from a normal population. The sample mean is 21,...
A sample of 30 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 20 H1: μ > 20 Is this a one- or two-tailed test? "One-tailed"—the alternate hypothesis is greater than direction. "Two-tailed"—the alternate hypothesis is different from direction. What is the decision rule? (Round your answer to 2 decimal places.) What is the value of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT