Interval for difference between population means

Assignment Help Other Subject
Reference no: EM13977635

A sample of 40 investment customers serviced by an account manager are found to have had an average of $23,000 in transactions during the past year, with a standard deviation of $8500. A sample of 30 customers serviced by another account manager averaged $28,000 in transactions, with a standard deviation of $11,000. Assuming the population standard deviations are equal, use the 0.05 level of significance in testing whether the population means could be equal for customers serviced by the two account managers. Using the appropriate statistical table, what is the most accurate statement we can make about the p-value for this test? Construct and interpret the 95% confidence interval for the difference between the population means.

Reference no: EM13977635

Questions Cloud

Do the following data suggest that the high frequency : Do the following data suggest that the high-frequency modulation is an effective analgesic? Use both xˆ2 and zstatistics.
Create an accounting equation gride : create an accounting equation gride, income statment, stament of owners equity, Blances sheet, statment of cash flow
P-value for the test : Assuming the population standard deviations to be equal, use the 0.05 level of significance in examining whether the population mean time for serving female guests might actually be no greater than that for serving male guests. Using the appropri..
Calculate the intensity of electric field produced by q one : Calculate the intensity of the electric field produced by q1 and q2 at the point where q3 is. Calculate the net force on q3. Calculate the total potential energy of the system of charges.
Interval for difference between population means : Using the appropriate statistical table, what is the most accurate statement we can make about the p-value for this test? Construct and interpret the 95% confidence interval for the difference between the population means.
Populations with equal standard deviations : Assuming normal populations with equal standard deviations, and using the 0.05 level of significance, does the new booklet appear to be better than the standard version?
Predict how fast the lady bug will rotate : Write a formula for the final angle θf an object will be at when it starts at an initial angle θi and rotates with an angular velocity ω for a certain interval of time.
Difference between the population means : Assuming normal populations with equal standard deviations, and using the 0.10 level, is there a significant difference between the two routes? Construct and interpret the 90% confidence interval for the difference between the population means.
The stock required rate of return : If the market risk premium increased to 6 percent, what would happen to the stock's required rate of return?

Reviews

Write a Review

 

Other Subject Questions & Answers

  Discuss relationship between time and frequency in signals

Discuss the relationship between time and frequency in signals.  What are some differences between the time-domain and the frequency-domain.? Discuss what is meant by the phrase “periodic signals are not be found in practice.”

  Problems based on popular culture and art

What did both Warhol and Rauschenberg have in common in regards to their art work?

  Is it strictly a social construction

Is there anything real about race or is it strictly a social construction? Is race a natural outcome of being a social species?

  How does it fit with your personal and professional goals

Write a two-page summary of why you chose the specialization you did. How does it fit with your personal and professional goals? What opportunities for professional association are available in your specialization?

  Strengths and weaknesses of the cyclic argument

What are the strengths and weaknesses of the cyclic argument (aka the argument of opposites) and of the theory of recollection?

  Develop a wbs for the tournament

Where can Nicolette find additional information to help her develop a WBS for the tournament?

  Simulate a basic game of craps

Write a program in java that will simulate a basic game of Craps. Ask the user for their starting money amount. Begin the game by asking for the bet ($5 increments only). The computer will simulate rolling the dice by using the random number generato..

  Indirect competitors

What are indirect competitors and If others are already in your proposed business, on what basis will you compete?

  Effect of teen fathers on the pregnancy

At least one current statistic on teen pregnancy (within the last 3 years). The effect of teen fathers on the pregnancy, teen mother's development, and infant development

  Major causes of on the job stress

What are some of the major causes of on the job stress? What are some strategies that can be used to counter them?

  Communicate diagnostic information

Do think there should be mandatory training for physicians and nurses about how to communicate diagnostic information to patients? Explain your answer.

  Teachers may use for students to judge reading material

Nila Smith discussed three general types of questions teachers may use for students to judge reading material. One was interpertation, another was critical analysis, and then there was a third the simpliest students could get right from the test.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd