Question

Question 7: Hypothesis Testing - Two-Sided, Unknown Population Variance A process produces cable for the local...

Question 7: Hypothesis Testing - Two-Sided, Unknown Population Variance

A process produces cable for the local telephone company. When the process is operating correctly, cable diameter follows a normal distribution with mean 1.6 inches. A random sample of 16 pieces of cable found diameters with sample mean of 1.615 inches and sample standard deviation of 0.05.

Test, at the 10% level against a two-sided alternative, the null hypothesis that the population mean is 1.6 inches.

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

Homework Answers

Answer #1

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
2.) A process produces cable for the local telephone company. When the process is operating correctly,...
2.) A process produces cable for the local telephone company. When the process is operating correctly, cable diameter follows a normal distribution with mean 4 inches. A random sample of 48 pieces of cable found diameters with a sample mean of 7 inches and a sample standard deviation of 0,66 inches. a) State your hypothesis H0 and H1 claiming that the process is operating correctly. b) State the decision rule, sample statistics, table value and test statistic in the same...
A random sample n=30 is obtained from a population with unknown variance. The sample variance s2...
A random sample n=30 is obtained from a population with unknown variance. The sample variance s2 = 100 and the sample mean is computed to be 85. Test the hypothesis at α = 0.05 that the population mean equals 80 against the alternative that it is more than 80. The null hypothesis Ho: µ = 80 versus the alternative H1: Ho: µ > 80. Calculate the test statistic from your sample mean. Then calculate the p-value for this test using...
Assume that the population variance is unknown. We test the hypothesis that Ho: µ=5 against the...
Assume that the population variance is unknown. We test the hypothesis that Ho: µ=5 against the one-sided alternative H1: µ≠5 at a level of significance of 5% and with a sample size of n=30. We calculate a test statistic = -1.699. The p-value of this hypothesis test is approximately ？ %. Write your answer in percent form. In other words, write 5% as 5.0.
A two-sided hypothesis test is being conducted for testing the mean of a normal distribution at...
A two-sided hypothesis test is being conducted for testing the mean of a normal distribution at the 90% level. The hypothesized mean value is 61 whereas the true mean is 66 with the variance being equal for both the hypothesized and real distributions at the value of 13.20. The sample size is 9. What are the values of the following in the asked order: Pr(Failing to reject the null hypothesis when it is false), Pr(Rejecting the null hypothesis when it...
A two-sided hypothesis test is being conducted for testing the mean of a normal distribution at...
A two-sided hypothesis test is being conducted for testing the mean of a normal distribution at the 85% level. The hypothesized mean value is 84 whereas the true mean is 86 with the variance being equal for both the hypothesized and real distributions at the value of 17.20. The sample size is 10. What are the values of the following in the asked order: Pr(Failing to reject the null hypothesis when it is false), Pr(Rejecting the null hypothesis when it...
**Please calculate using JMP and show anaylsis* When operating normally, a manufacturing process produces tablets for...
**Please calculate using JMP and show anaylsis* When operating normally, a manufacturing process produces tablets for which the mean weight of the active ingredient is 5 grams, and the standard deviation is 0.025 gram. For a random sample of 12 tables the following weights of active ingredient (in grams) were found: 5.01 4.69 5.03 4.98 4.98 4.95 5.00 5.00 5.03 5.01 5.04 4.95 Without assuming that the population variance is known, test the null hypothesis that the population mean weight...
When operating normally, a manufacturing process produces tablets for which the mean weight of the active...
When operating normally, a manufacturing process produces tablets for which the mean weight of the active ingredient is 5 grams, and the standard deviation is 0.025 gram. For a random sample of 12 tables the following weights of active ingredient (in grams) were found: 5.01 4.69 5.03 4.98 4.98 4.95 5.00 5.00 5.03 5.01 5.04 4.95 Without assuming that the population variance is known, test the null hypothesis that the population mean weight of active ingredient per tablet is 5...
Below are some examples of hypothesis testing questions. Match the correct test to the question. -...
Below are some examples of hypothesis testing questions. Match the correct test to the question. - Heritage Union has said that 66% of U.S. adults have purchased life insurance. Suppose that for a random sample of 50 adults from a given U.S. city, a research finds that only 56% of them have purchased life insurance. At a 0.05 level of significance test, is this sample finding significantly lower than the 66% reported by Heritage Union? - A scrap metal dealer...
A sample is drawn from a population and we estimate that the two-sided 99% confidence interval...
A sample is drawn from a population and we estimate that the two-sided 99% confidence interval on the mean of the population is 1.09007 ≤ µ ≤ 1.40993. One of the following statement is correct, determine which. A. We would reject the null hypothesis H0 : µ = 1.1 against the alternative hypothesis H1 : µ 6= 1.1 at the level of significance α = 1%. B. We would fail to reject the null hypothesis H0 : µ = 1.5...
In testing the difference between two population means when population standard deviations are unknown, there are...
In testing the difference between two population means when population standard deviations are unknown, there are many cases depending upon whether the two population standard deviations are equal or not. Therefore, before testing the difference between two population means, the equality of two population variances must be tested first. Let the sample data from population #1 be? =10,?̅ =97.4,? =8.8769andfrompopulation#2be? =7,?̅ =110,? =30.2214. 111 222 Answer the following five questions assuming the level of significance=0.1. 23. In testing the hypothesis...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT