Statistics

Identify if the sampling plan is appropriate for the given scenario. Justify your decision based on the characteristics of the plan, the ease or difficulty of carrying out the plan, and any sampling errors likely to occur due to the sampling plan.Indicate whether you think the sampling plan is appropriate for the scenario and explain why. Your response should address the reason to use/not use the Sampling Plan including possible sampling errors.

Scenario 1: A manufacturing company with 100 employees wants to conduct a survey to determine how their employees feel about existing company policies. The HR manager decides to divide the company into five clusters, Sales (18 employees), Engineering (5 employees), Production (57 employees), Maintenance (12 employees) and Management (8 employees). She then randomly chooses Sales to complete the survey and all 18 members of the Sales department are given the survey.

Scenario 2: A large multi-national company wants to survey their employees about worker satisfaction. Approximately 30% of the company workers are in the U.S., 25% are in Canada, 15% are in Australia, with 10% each in Vietnam, Panama, and Japan. Since Management believes the response may vary from country to country they decide to use a Stratified Sampling Plan, with each country representing a different stratum. They use simple random sampling to choose 100 representatives from each stratum. The survey is emailed to the selected employees and responses are requested within 30 days.

Statistics

By ChatEssays

Statistics
Your Data Interpretation Practicum

Information from Discussion to run either t tests or ANOVA only one is required.

This week, you will run either t tests or ANOVA on your chosen data. This Application requires you to engage in data interpretation and to select the

appropriate analyses for your hypotheses and for the data that you have at your disposal. Toward that end, you should consider which analyses will

inform the reader and allow you to pursue your questions.

Specific Instructions:

Your submission to your Instructor should include your SPSS output file of your selected statistical analyses in a Word document, along with each of

the following elements: your SPSS output, including graphical representations; your narrative interpretation; the governing assumptions of the

analyses you ran; the viable and nonviable hypotheses (null and alternative); and the relevant values (such as a P value indicating statistical

significance or a lack thereof). Be sure to indicate to your Instructor why you selected the analyses that you did. In other words, why did you

select t test over ANOVA or vice versa? Why one-way or two-way? How is this analysis related to the hypothesis?

Research Question

How can business leaders in the telecommunications industry shape the future of the telecommunications industry to arrive at a sustainable business

value?

Hypotheses
H0: Business leaders shaping the future in the telecommunications industry has a significant relationship with sustainable business value

H1:Business leaders shaping the future in the telecommunications industry has no significant relationship with sustainable business value.

statistics

By ChatEssays

2Data gathered by the U.S Department of Transportation show the number of miles that residents of the 75 largest metropolitan areas travel per day in a car. Suppose that for a simple random sample of 50 Buffalo residents the mean is 22.5 miles a day and the standard deviation is 8.4 miles a day, and for an independent simple random sample of 100 Boston residents the mean is 18.6 miles a day and the standard deviation is 7.4 miles a day.

http://eduhelpus.com

i. What is the point estimate of the difference between the mean number of miles that Buffalo residents travel per day and the mean number of miles that Boston residents travel per day?

ii. What is the 95% confidence interval for the difference between the two population means?

iii. Are all the requirements to build a confidence interval for the differences of mean satisfied?

PROBLEM 4: The Educational Testing Service has conducted studies designed to identify differences between the scores of male and female students on the SAT. For a sample of female students, the standard deviation of test scores was 83 on the verbal portion of the SAT. For a sample of male students, the standard deviation was 69 on the same test. The standard deviations were based on SRS of 121 male and 121 female students.

i. Does the data indicate a difference between the variances of female and male students’ scores on the verbal portion of the SAT? Use a 1% level of significance. Use the critical value method.

ii. What is the p−value?

iii. Would the decision be the same if you tested at a 5% level of significance? Consider the p−value from (ii). What would be the lowest significance level at which you could reject H0?

PROBLEM 5: A sample of 1545 men and a sample of 1691 women were used to compare the amount of housework done by women and men in dual-earner marriages. The study showed that 67.5% of the men felt the division of housework was fair and 60.8% of the women felt the division of housework was fair.

i. Is the proportion of men who felt the division of housework was fair greater than the proportion of women who felt the division of housework was fair? Test your hypothesis at the 5% level of significance. Use the p−value method.

ii. Use the confidence interval method to test the hypothesis. Show all steps.

http://eduhelpus.com

Statistics

By ChatEssays

Topic: Statistics
Consider the question of the pros and cons of doctors using ethics consultations with doctors, and other ethicists, trained
to think and provide advice on ethical issues in healthcare. Take a look on the Internet to find an article or articles on this issue.What is your view?Do you have any personal experiences you are comfortable sharing about medical ethical issues you and your family and/or friends have confronted?