User Account

All Pages

Find the degree of freedom for unequal variance test

Assignment Help Basic Statistics
Reference no: EM13862816

The null and alternate hypothesis is:

H0: µ1≤ µ2

H0: µ1 > µ2

A random sample of 20 items from the first population showed a mean of 100 and a standard deviation of 15. A sample of 16 items for the second population showed a mean of 94 and a standard deviation of 8. Use the .05 significant level.

a. Find the degree of freedom for unequal variance test.

b. State the decision rule for .05 significance level.

c. Compute the value of the test statistic.

d. What is your decision regarding the null hypothesis? Use the .05 significance level.

Reference no: EM13862816

Questions Cloud

Quality healthcare through quality information : Source: Quality Healthcare through Quality Information: American Health Information Management Association, Analyze your findings on secondary data sources and discuss them with your classmates. How do the findings add to and contribute to the info..
Consider the lobster : What is the main argument in "Consider the Lobster" by David Foster Wallace?
What form of social and political organization : A group society project due tomorrow. It is about designing our own Utopia. My part of the assignment is about the governing body and answering the questions that follow after talking about the governing body. I would like someone to help me with thi..
What is difference between if statement and switch statement : What are the problems faced by Java programmers who don't use layout managers? What is the difference between an if statement and a switch statement?
Find the degree of freedom for unequal variance test : a. Find the degree of freedom for unequal variance test. b. State the decision rule for .05 significance level. c. Compute the value of the test statistic.
Write about that particular issue symptom within the case : Write about that particular issue symptom within the case, along with the possible and the best courses of action to those issues they have chosen.
State for pre-kindergarten or kindergarten : Select a learning outcome of any subject area from your state for Pre-Kindergarten or Kindergarten. List the content standard and describe an activity that facilitates learning this concept. Then, describe a form of authentic assessment that you will..
What is a java package and how is it used : What is a Java package and how is it used? What are synchronized methods and synchronized statements?
Summarize how you see the migration of amhs : Summarize how you see the migration of AMHS out of Africa, e.g. when we left, how many times we left, from where, etc. Be sure to back up your itinerary with empirical evidence

Reviews

Write a Review

Basic Statistics Questions & Answers

  Difference in proportions observed in the trial

The trial failed to show significance. How many subjects would be required to detect the difference in proportions observed in the trial with 80% power?

  Find the z test statistic for the hypothesis test

Assume that you plan to use a significance level of = 0.05 to test the claim that P1 = P2. Use the given sample sizes and numbers of successes to find the z test statistic for the hypothesis test.

  Protection of the well-being of the human subjects

Business research topic. Strengthen and improve initial proposal - Description of data collection and analysis methods

  Determining random selection and probability

EBook is a digital book provider that sells their downloaded product through both Anason and Bairnes-Nolb. Anason requires that EBook use a different format than they use for Bairnes-Nolb.

  Binomial random variable

Assume that the number of left-handers is a binomial random variable. (Refer to the formula for mean and standard deviation for binomial prob. Distribution)

  Find probability that lifetime for disk drive exceed life

The lifetime of a disk drive head is normally distributed with a population mean of 1000 hours and a standard deviation of 120 hours. Determine the probability that the lifetime for 9 disk drives will exceed 940 hours.

  Normal distribution and binomial experiment

Provide an example of an application of the normal distribution. Explain why standard normal distribution can be used to find the probabilities for all normal distributions?

  Two-sided test and significance level

The expected peak expiratory flow rate in adults is 300 with a standard deviation of 50. how many subjects should be enrolled to ensure 80% power to detect a difference of 15 liters per minute with a two-sided test and significance level of 0.05?

  If they go back and revise their answers they start second

when taking an exam some students quickly answer all the questions they know how to do. if they go back and revise

  Suppose we were interested in determining if there were

suppose we were interested in determining if there were differences in the average prices among two local supermarkets.

  A newspaper finds that the mean number of typographical

a newspaper finds that the mean number of typographical errors per page is four. find the probability that more than

  Enough information to decide on statistical significance

A nurse reading this finding knows that the researcher should decide that there is not enough information to decide on statistical significance.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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