Question: A simple random sample of size 16 has mean x = 4.1 and standard deviation s = 6.2. The population is normally distributed. Can you

A simple random sample of size 16 has mean x̄ = 4.1 and standard deviation s = 6.2. The population is normally distributed. Can you conclude that the population standard deviation is greater than 5? Use the α = 0.05 level of significance.

In Exercises 5–12, state which type of parameter is to be tested; then perform the hypothesis test.

Step by Step Solution

★★★★★

3.42 Rating (152 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Elementary Statistics Questions!

A simple random sample of size 22 has mean x = 91.7 and standard deviation s = 19.3. The population is normally distributed. Can you conclude that the population standard deviation is greater than...

A simple random sample of size 7 has mean x = 32.5 and standard deviation s = 8.27. The population is normally distributed. Can you conclude that the population standard deviation is greater than 6?...

A simple random sample of size 6 has mean x = 5.49 and standard deviation s = 2.37. The population is approximately normally distributed. Can you conclude that the population mean is greater than 4?...

State which type of parameter is to be estimated, and the correct method for the following. Do not solve. Part: 0 / 3 Part 1 of 3 (a) A simple random sample of size 13 has mean x = 3.79 and standard...

State which type of parameter is to be estimated, and the correct method for the following. Do not solve. Part 1 of 3 (a) A simple random sample of size 11 has mean x = 3.94 and standard deviation s...

A simple random sample of size 13 has mean x = 7.26 and standard deviation s = 2.45. The population is approximately normally distributed. Can you conclude that the population mean differs from 9?...

A simple random sample of size 15 has mean x = 27.72 and standard deviation s = 8.21. The population is approximately normally distributed. Can you conclude that the population mean differs from 35?...

A simple random sample of size 8 has mean x = 3.21 and standard deviation s = 1.69. The population is normally distributed. Construct a 99% confidence interval for the population standard deviation....

A simple random sample of size 15 has mean x = 10.34 and standard deviation s = 3.48. The population is normally distributed. Construct a 95% confidence interval for the population standard...

A simple random sample of size 17 has mean x = 8.44 and standard deviation s = 5.38. The population is normally distributed. Construct a 95% confidence interval for the population standard deviation....

1. Create the relationships necessary among the three tables. Use the following ER diagram (Exhibit 4.42) as a guide: Raw_Materials Raw Materia's Code Raw Materials, Description Raw Materiais Price...

1. You have been asked to vote shares of the two mutual funds on the above two shareholder resolutions and the election of directors. For each fund, please answer the following questions: 2. How will...

What is the index of the first element in an array?

9: Cash; Accounts Re- ceivable; Office Supplies; Office Equipment; Excavating Equipment; Accounts Payable; R. Truro, Capital; R. Truro, Withdrawals; Revenues; and Expenses. 2 . Use additions and...

On the following random samples of social class, test the null hypothesis that neighborliness does not vary by social class. Lower Working Middle Upper 4 3 8 4

A researcher is interested in the effect type of residence has on the personal happiness of college students. She selects samples of students who live in campus dorms, in off-campus apartments, and...

A pediatrician speculated that frequency of visits to his office may be influenced by type of medical insurance coverage. As an exploratory study, she randomly chose 15 patients: 5 whose parents...

Journal Entry Workshop: COMPREHENSIVE PROBLEM - CHAPTER 4 need required A,B,C,D and extra credit E,F please and thank you! i will put the layout for you EuRo Enterprises Financial Statements Balance...

During 2 0 2 5 , Sage Co . ' s first year of operations, the company reports pretax financial income at $ 2 4 9 , 0 0 0 . Sage's enacted tax rate is 4 5 % for 2 0 2 5 and 2 0 % for all later years....

Complete the following table: (Use Table 15.1) Note: Round your intermediate calculations and final answer to the nearest cent. (1.20)