T-statistic for a two-sample test for means

Assignment Help Other Subject
Reference no: EM132408984

Consider the following sample statistics:

x ¯ A = 1063

x ¯ B = 1060

s p = 70

where sp is the pooled standard deviation. The formula for the t-statistic for a two-sample test for means is

t = x ¯ A - x ¯ B S E x ¯ A - x ¯ B

where S E x ¯ A - x ¯ B = s p 1 n A + 1 n B

is the standard error of the difference between sample means. The sample sizes for Groups A and B are 160 and 250, respectively.

What is your conclusion regarding the proposed hypothesis at a significance level of alpha = 0.10? (Hint: Use t0 = 1.28 as your critical value).

Group of answer choices

Cannot conclude due to inapplicability of Central Limit Theorem

Cannot conclude due to lack of information

Reject the null hypothesis

Fail to reject the null hypothesis

Reference no: EM132408984

Questions Cloud

Compute the z value of the sample test statistic : Compute the z value of the sample test statistic. (Round your answer to two decimal places.)
What is the probability that the sum : State/write out all the points the sample space. Visualize a grid with 6 outcomes across the top and down the column.
Biometric system evaluation : Read the worksheet named "Biometric System Evaluation" and address. identify the correct advantages and disadvantages of each listed biometric type.
Determine the probability of selecting a committee : Determine the probability of selecting a committee of eight board members where exactly two of the members were female. answer as a decimal
T-statistic for a two-sample test for means : What is your conclusion regarding the proposed hypothesis at a significance level of alpha = 0.10? (Hint: Use t0 = 1.28 as your critical value).
ERM approach in Higher Education environments : Implementing enterprise risk management: Case studies and best practices. John Wiley and Sons. Reading covers the ERM approach in Higher Education environments.
Learn about defending against ddos : Learn About Defending Against DDoS. Find a DoS attack that has occurred in the last six months
Comprehensive response describing naive bayes : Provide a comprehensive response describing naive Bayes? Explain how naive Bayes is used to filter spam. Please make sure to explain how this process works.
What is the probability of observing a score : The SAT scores follow a normal distribution. The mean SAT score is 1200 and standard deviation 100.

Reviews

Write a Review

Other Subject Questions & Answers

  Deals with psychology for extra bonus points

I need a double spaced 3 page paper on something that is going on in the us dealing with psychology today. Nothing has to be cited and It does not have to be excellent. Just something summarizing an event that deals with psychology for extra bonus po..

  Discuss what attitudes toward female sexuality help

What attitudes toward female sexuality help explain the veiling of women and practice of purdah

  What are the economic implications

Would the answer change if more insurance plans covered the expensive treatment options? What are the economic implications if the facility absorbed the cost of the treatment

  How lobbyists affect healthcare legislation

Lobbyists have been part of the U.S. Government system since the early 1800s. Analyze two examples of how lobbyists affect healthcare legislation.

  What standard deviation is required for diameter of dot

Assume that specifications require dot diameter to be between 0.0014 and 0.0026 inch. If probability that the dot meets specifications is to be 0.9875, what standard deviation is required?

  Friction loss in pump-friction loss in rest of process

The water flow rate is 45.4 kg/s. The efficiency of the pump is 80% and 7.5 kW are furnished to the pump shaft. Calculate the following the friction loss in the pump and The friction loss in the rest of the process.

  How would you conduct an audience assessment

You work for a local car dealership, and have been asked by your chamber of commerce to deliver a presentation to the community on buying a car.

  Explain how a reed switch works

Explain how a reed switch works and how the pull-on distance can affect the operation of the reed switch?

  The transportation security administration

The Transportation Security Administration doesn't care if you have been naughty or nice this holiday season. If your brightly-wrapped package potentially contains an illegal item, it will get confiscated and you may get arrested, reports CBS Los Ang..

  Explain strength have regarding professional presentations

Explain one personal strength and one weakness you have regarding professional presentations. Name one method for improvement for each of these and discuss why

  Explain article authors position about offshore drilling

Explain the article author's position about offshore drilling. Do you agree with the article author's position? Explain your answer.

  Potential method of hacking into a hospital

One potential method of hacking into a hospital's records is through a wearable device. Often, wearable devices are used by health care institutions to monitor

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