Question: For the data in Exercise 1, a) Test the null hypothesis at = 0.05 using the pooled t-test. (Show the t-statistic, P-value, and conclusion.)

For the data in Exercise 1,

a) Test the null hypothesis at α = 0.05 using the pooled t-test. (Show the t-statistic, P-value, and conclusion.)

b) Find a 95% confidence interval using the pooled degrees of freedom.

c) Are your answers different from what you previously found in Exercise 9? Explain briefly why or why not.

Step by Step Solution

★★★★★

3.48 Rating (164 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

a The pooled tstatistic is The Pvalue is 00246 Conclusion Reject the null hypothesis there is suf... View full answer

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

Document Format (1 attachment)

Word file Icon

452-M-C-M-S (47).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Q:

For the data in Exercise 1 in this section, construct a histogram, a frequency polygon, and an ogive, using relative frequencies. What proportion of the applicants needs to enroll in the summer...

Q:

The article from which the data in Exercise 1 was extracted also gave the accompanYing strength observations for cylinders: Prior to obtaining data, denote the beam strengths by X1,..., Xm and the...

Q:

For the data in Exercise 71, set up a grouped data frequency table using classes 0 to under 5 and 5 to under 10. In exercise a. Draw the corresponding histogram. b. Use the grouped data table to...

Q:

For the data in Exercise 3, a) Test the null hypothesis at = 0.05 using the pooled t-test. (Show the t-statistic, P-value, and conclusion.) b) Find a 95% confidence interval using the pooled degrees...

Q:

For the data in Exercise 4, a) Test the null hypothesis at = 0.05 using the pooled t-test. (Show the t-statistic, P-value, and conclusion.) b) Find a 95% confidence interval using the pooled degrees...

Q:

A developer wants to know if the houses in two different neighborhoods were built at roughly the same time. She takes a random sample of six houses from each neighborhood and finds their ages from...

Q:

Hi there, Please help me to solve all 4 questions for those parts that doesn't have answer. Thanks! 9 ) Professors collected data consisting of eye color and gender of statistics students. Among 926...

Q:

Below is the data for a personality questionnaire measuring "Openness to New Experiences". These data were taken from a random sample of 100 undergraduate psychology majors. In the general...

Q:

11.13 Swampy Sites An ecological study was conducted to compare the rates of growth of vegetation at four swampy undeveloped sites and to determine the cause of any differences that might be...

Q:

What should be the adjusted cash balance on April 30,2027 ? \begin{tabular}{|} $34910 \\ $36320 \\ $36270 \\ \hline$34860 \\ \hline \end{tabular}

Q:

Refer to Problem 145A and add the following requirement. Prepare a letter to the president of the company, Shelly Phillips, describing the changes you made. Explain clearly why net income is...

Q:

1. Distinguish between pure risk and speculative risk. 2. Explain the distinctions between risk and odds. 3. Distinguish among the five common risk exposures that most people face. 4. Describe the...

Q:

In November of year 3, Gardner sold the shares of stock for a $5,000 gain. Which of the above transactions will Gardner report as long-term capital gains or losses for year 3? I. The bad debt...

Q:

A first-time project manager is advised by an experienced project manager that he needs to plan for cost of quality. The first-time project manager is not sure of what costs are included in the cost...

Q:

Access the data labeled Property_Taxes from the text website. The data represent the size of a home (in square feet) and its property taxes owed by the owner (in $) in an al fluent suburb 30 miles...

Q:

Caterpillar, Inc. manufactures and sells heavy construction equipment worldwide. The performance of Caterpillars stock is likely to be strongly influenced by the economy. For instance, during the...

Q:

A Realtor examines the factors that influence the price of a house in Arlington, Massachusetts. He collects data on recent house sales (Price) and notes each houses square footage (Sqft) as well as...

Q:

Case 9-25 (Algo) Critiquing a Report; Calculating Spending Variances [LO9-3, LO9-5] Boyne University offers an extensive continuing education program in many cities throughout the state. For the...

Q:

Reference: http://s2.q4cdn.com/661678649/files/doc_financials/annual/2016/2016-Annual-Report.pdf Downloade cashflow of Boeing company online. Company name: Boeing Please do perfect job...thank you...

Q:

Arthur is the policyowner of a whole life insurance contract. The insured is Betty. The primary beneficiary is Carl and the contingent beneficiary is Diane. Betty and Carl die simultaneously in a...