Null and alternative hypotheses

Assignment Help Basic Statistics
Reference no: EM131098163

In a sample of 50 business trips taken by employees in the HR department, a company finds that the average amount spent for the trips was $1450 with a standard deviation of $450. In a sample of 80 trips taken by the employees in the sales department is $1650 with a standard deviation of $700. When testing the hypothesis (at the 5% level of significance) that the variance of the amount spent on trips is significantly larger in one department than the other, what is the null and alternative hypotheses? (please write out the null and alternative hypotheses below AND on your scratch work...failure to do BOTH will result in 0 points)

Reference no: EM131098163

Questions Cloud

Average amount spent for the trips : In a sample of 41 business trips taken by employees in the HR department, a company finds that the average amount spent for the trips was $1,462 with a standard deviation of $530.
Principles or theories that you believe to be valid : Identify two of his principles or theories that you believe to be valid - support your perspective with examples and properly source credit ideas and concepts
A sustained and systematic argument : There is one question in this exam. Your answer should be around 2000 words (4 Word pages). Your answers should be clear, precise, and to the point. They should take the form of a sustained and systematic argument backed by reasoning and evidence ..
Business trips taken by employees : In a sample of 59 business trips taken by employees in the HR department, a company finds that the average amount spent for the trips was $1,495 with a standard deviation of $458.
Null and alternative hypotheses : When testing the hypothesis (at the 5% level of significance) that the variance of the amount spent on trips is significantly larger in one department than the other, what is the null and alternative hypotheses? (please write out the null and alte..
Advantages and disadvantages of easily obtainable info : What are the advantages and disadvantages of easily obtainable information? What are the advantages and disadvantages of social media? How might knowing these advantages and disadvantages alter how a person might use social media? What credibilit..
What other relationships among these variables can you infer : What other relationships among these variables can you infer? Which of the values are dependent solely on graph properties, and which are dependent on dynamic properties of the DFS?
Average amount spent on trips : When testing the hypothesis that the average amount spent on trips taken by the salesepartment are higher than those taken by the HR department, if the test statistic is 2.33 and the critical value is 1.96 then what is your conclusion concerningth..
Hr department what is the test statistic : When testing the hypothesis (at the 5% level of significance) that the average amount spent on trips taken by the sales department are higher than thosetaken by the HR department what is the test statistic? (please round your answer to 2decimal pl..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

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

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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