Solution-What is the p-value, Fry Brothers heating and Air

What is the p-value

Assignment Help Basic Statistics

Reference no: EM13905162

Fry Brothers heating and Air Conditioning, Inc. employs Larry Clark and George Murnen to make service calls to repair furnaces and air conditioning units in homes. Tom Fry, the owner, would like to know whether there is a difference in the mean number of service calls they make per day. Assume the population standard deviation for Larry Clark is 1.05 calls per day and 1.23 calls per day for George Murnen. A random sample of 40 days last year showed that Larry Clark made an average of 4.77 calls per day. For a sample of 50 days George Murnen made an average of 5.02 calls per day. At the .05 significance level, is there a difference in the mean number of calls per day between the two employees? What is the p-value?

Hypothesis Test: Independent Groups (t-test, pooled variance)
Larry	George
4.77	5.02	mean
1.05	1.23	std. dev.
40	50	n
88	df
-0.25	difference (Larry - George)
1.33102	pooled variance
1.1537	pooled std. dev.
0.24474	standard error of difference
0	hypothesized difference
-1.02	t
0.3098	p-value (two-tailed)
-0.73636	confidence interval 95.% lower
0.23636	confidence interval 95.% upper
0.48636	margin of error

Reference no: EM13905162

Questions Cloud

Difference in the mean amount purchased on an impulse : At the .01 significance level is there a difference in the mean amount purchased on an impulse at the two stores? Explain these results to a person who knows about the t test for a single sample but is unfamiliar with the t test for independent me..

Was benson bound to the residency agreement : Benson suffered from dementia and chronic confusion. When he became unable to manage his own affairs, including decisions about medical and financial matters, his son Eddie arranged for Benson to move to an assisted living facility. Was Benson bound ..

Middle of an unkempt person : When Shanaya Malkan boarded her Air India flight to London in Mumbai, she was seated in the middle of an unkempt person who apparently had not bathed recently on one side and a baby crying on the other.

Separate demand to pay the commission in installments : ABC Inc., contracted XYZ LLC to lease certain real property on behalf of a client. ABC emailed the landlord a separate agreement for the payment of ABC's commission. The landlord emailed it back with a separate demand to pay the commission in install..

What is the p-value : Fry Brothers heating and Air Conditioning, Inc. employs Larry Clark and George Murnen to make service calls to repair furnaces and air conditioning units in homes

What is pressure in a 200 feet column of water : What is pressure in a 200 feet column of water and How much is the pipe grade length if 92 feet pipe is graded at 1/8 per foot?

Show the given situation on an s - r diagram : You may invest in any one, or in any combination of them. The mean rate of return r is the same for each asset, but the variances are different. Show the situation on an s - r diagram. Describe the efficient set.

Must the contract be in writing to be enforceable : ABC company hired Andrew as its research director. The terms of the employment contract is five years. As ABC knows at the moment of signing, Andrew is terminally ill when the contract is created, and is not expected to live more than nine months. Mu..

Estimate the cost of the inventory destroyed : 1. Kauai Store's inventory is destroyed by a fire on September 5, 2013. The following data for year 2013 are available from the accounting records. Estimate the cost of the inventory destroyed.

User Account

All Pages

What is the p-value

Reference no: EM13905162

Reference no: EM13905162

Questions Cloud

Reviews

Write a Review

Basic Statistics Questions & Answers

Statistics-probability assignment

What is the least number

Determine the value of k

What is the probability

Binomial distributions

Caselet on mcdonald’s vs. burger king - waiting time

Generate descriptive statistics

Sampling variability and standard error

Estimate the population mean

Conduct a marketing experiment

Find out the probability

Linear programming models

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT