User Account

All Pages

What is the value of the appropriate test statistic

Assignment Help Basic Statistics
Reference no: EM132167309

Suppose we wish to test H0: μ1 - μ2 ≤ 0 versus HA: μ1 - μ2> 0. Independent random samples are taken from two normally distributed populations with unknown variances. The following sample statistics are given: X¯11 = 15.4, X¯2 = 14.5, s1 = 2, s2 = 2.28, n1 = 35, n2 = 18. Assuming that the population variances are not equal, what is the value of the appropriate test statistic?

Reference no: EM132167309

Questions Cloud

Significance level using sample statistics : Use a chi X2-test to test the claim sigma squared equals 0.42 at the alpha equals 0.10 significance level using sample statistics s squared equals
Find the probability that you make your : Find the probability that you (a) make your first sale on the fifth call, (b) make your first sale on the first
Use the four steps of hypothesis testing : a) Use the four steps of hypothesis testing b) Illustrate the distributions involved
How does central limit theorem apply to this problem : In a random sample of 36 people, find the probability that the average amount spent is more than $61.50. How does central limit theorem apply to this problem?
What is the value of the appropriate test statistic : Assuming that the population variances are not equal, what is the value of the appropriate test statistic?
Describe the current events : How do you feel that the media perpetuates discrimination and/or stratification based on race, gender, and class?
Find the temperature which is exceeded by the high tempature : Find the temperature which is exceeded by the high tempature 90% of the days in august.
How do you calculate calculate mean : How do you calculate calculate mean, median, and mode for the categories of data, and derive the deviation, variance, and dispersion, and distribution?
Describe as best you can what you hear : Describe the performance and your response to the music. Highlight individual performers, if that was one of the impressive aspects of the concert.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Down the distribution of the number of heads

A coin is tossed ten times. Write down the distribution of the number of heads, (a) exactly, using the Binomial distribution,

  Signers of the declaration of independence

The following are ages of 15 of the signers of the Declaration of Independence.

  Determining that survey results are reported in the news

Suppose a tobacco company is planning to fund a telephone survey of attitudes about banning smoking in restaurants.

  Find the population of individuals who have disease

Suppose that a new treatment for a certain disease is given to a sample of 200 patients. The treatment was successful for 166 of the patients.

  Suppose you flip a fair coin 500 times what is the standard

suppose you flip a fair coin 500 times. what is the standard error for the number of heads you

  Cumulative risk profiles for the three alternatives

Construct cumulative risk profiles for the three alternatives, assuming Apricot has a 25% chance of winning the lawsuit. Can you draw any conclusions?

  Conclude that new formula and old one are equally effective

A company s old antacid formula provided relief for 70% of the people who used it. The company tests a new formula to see if it is better and gets a P-value of 0.27. Is it reasonable to conclude that the new formula and the old one are equally ef..

  What amount to recommend as a counteroffer

Mayfair's insurance company proposed a settlement based on lost sales of $240,000 in July and August. Is this amount fair? If not, what amount would you recommend as a counteroffer?

  How data point significant difference between two treatments

Second treatment had M = 52 with s^2 = 36. Do these data point to significant difference between two treatments? Use the two-tailed test with α = .05.

  What is the shape of the distribution of the sample mean

What is the sampling distribution of phat, the sample proportion of adults who smoke and in a random sample of 300 adults, what is the probability that at least 50 are smoker.

  Find the entropy of given random variable as a function of p

Consider a given geometric random variable. - Find the entropy of this random variable as a function of p .

  Did new irrigation system cause increase in mean weight

Based on an SRS of 50 pineapples with a mean weight of 31.6 ounces, did the new irrigation system cause an increase in the mean weights of pineapples produced? Explain your answer completely.

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