Question: A sample of 18 items provides a sample standard deviation of 9.5. Test the following hypotheses using a = 0.05. What is your conclusion?

A sample of 18 items provides a sample standard deviation of 9.5. Test the following hypotheses using a = 0.05. What is your conclusion? Ho: 50 H:0 > 50 Use the p-value approach. Find the value of the test statistic. Find the p-value. (Round your answer to three decimal places.) p-value = State your conclusion. O Reject Ho. We conclude that the population variance is greater than 50. O Do not reject Ho. We conclude that the population variance is greater than 50. O Reject Ho. We conclude that the population variance is not greater than 50. O Do not reject Ho. We conclude that the population variance is not greater than 50. Use the critical value approach. Find the value of the test statistic. State the critical values for the rejection rule. (Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.) test statistic s test statistic 2 State your conclusion. O Reject Ho. We conclude that the population variance is greater than 50. O Do not reject Ho. We conclude that the population variance is greater than 50. O Reject Ho. We conclude that the population variance is not greater than 50. O Do not reject Ho. We conclude that the population variance is not greater than 50.

Step by Step Solution

★★★★★

3.53 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Ans Introduction The given problem is a hypothesis test of the chi... View full answer

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 Mathematics Questions!

Which of the following is not a partnership for tax purposes? a). Lillian and Don purchase real estate together as an investment, not as a business. b). Willis and James purchase and operate a shoe...

Assume that you and another fraud examiner have been hired to investigate this potential perpetrator. You and your colleagues are debating whether it is ethical to "lie" during an admission-seeking...

When banks borrow and lend reserves in the federal funds market, Multiple Choice the reserves of the banking system become part of M1 the total reserves of the banking system stay the same. the total...

For Exercise 1.6, compute the sample standard deviation in tensile strength for the samples separately for the two temperatures. Does it, appear as in an increase in temperatures influences the...

The null and alternate hypotheses are: H0: 1 = 2 H1: 1 2 A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random...

a. A random sample of 25 observations was drawn from a normal population. The sample mean and sample standard deviation are x = 52 and s = 15. Calculate the test statistic of a test to determine if...

Bank of Americas Consumer Spending Survey collected data on annual credit card charges in seven different categories of expenditures: transportation, groceries, dining out, household expenses, home...

Is there a significant difference in the gasoline mileage of a car for regular unleaded and premium unleaded? To test this question, a researcher randomly selected 15 drivers for a study. They were...

A random sample of size n = 13 obtained from a population that is normally distributed results in a sample mean of 45.3 and sample standard deviation of 12.4. An independent sample of size n = 18...

The Wechsler IQ test is designed so that the mean is 100 and the standard deviation is 15 for the population of normal adults. Listed below are IQ scores of randomly selected professional pilots. It...

Choose two types of bias from the list below to discuss this post: Refusal to participate Interviewer bias Confounding Publication bias Loss to follow - up Differential recall bias Non - differential...

You are currently working for BestMotors, a US manufacturer. Your main responsibility is managing the shipping of motors from your supplier in China to your company's factory in Michigan. Demand for...

________ highlight the number of events (the numerator) relative to potential events (the denominator). a. Trends b. Rates c. Ratios d. Common sizing

explain why La Bellissima can use recycled cardboard boxes to A. package up the orders for butter chicken and rice

Computerized medical records have promoted ________ in recent years, while industry costs are ________. Question 28 options: a) greater efficiency; rising b) decreased privacy; declining c) greater...

You recently bought a home M7.5 Discussion: Considering the Possibilities in Your Own Backyardwith a structure distant from the main house. This area was used as an art studio by the previous owner....

Mainland Resources Inc. began operations on June 5, 2023. 2023 June 5 Gave 4,000 common shares to the organizers of the corporation in exchange for accounting and legal. services valued at $83,500....

The outer loop controls the number of students. Note that the inner loop of this program is always executed exactly three times, once for each day of the long weekend. Modify the code so that the...

A radio station in Myrtle Beach announced that at least 90% of the hotels and motels would be full for the Memorial Day weekend. The station advised listeners to make reservations in advance if they...

The American Bankers Association collects data on the use of credit cards, debit cards, personal checks, and cash when consumers pay for in-store purchases (The Wall Street Journal, December 16,...

According to a survey conducted by TD Ameritrade, one out of four investors have exchange-traded funds in their portfolios (USA Today, January 11, 2007). Consider a sample of 20 investors. a. Compute...

An article on the PureEnergySystems.com website written by Louis LaPoint discusses a product called acetone. The article stated that Acetone 1 CH 3 COCH 3 2 is a product that can be purchased...

One of the advances that helped to diminish carpal tunnel syndrome is ergonomic keyboards. The ergonomic keyboards may also increase typing speed. Ten administrative assistants were chosen to type on...

The United Way raises money for community charity activities. Recently, in one community, the fundraising committee was concerned about whether there is a difference in the proportion of employees...