Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Compare the means of two populations using 96 percent confidence interval.

In order to evaluate the means of two populations, independent random samples of 484 observations are selected from each population, with the following results:

Sample 1

Sample 2

xi

x2

st = 105

s2 = 165

(a) Utilize a 96 percent confidence interval to estimate the difference between the population means (mean 1 - mean 2)
(b) Test the null hypothesis: Ho: (mean 1 - mean 2) = 0 versus the alternative hypothesis: Ha : mean 1 - mean 2) is not equal to 0. Using alpha = 0.04, give the following:

1. The test statistic z= 
2. positive critical z score the negative critical z score
® : Test the null hypothesis: Ho: (mean 1 - mean 2) = 21 versus the alternative hypothesis: Ha: (mean 1 - mean 2) not equal to 21. Using alpha = 0.04, give the following.
1. Test statistic
2. positive critical z score
3.the negative critical z score

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921652

Have any Question? 


Related Questions in Statistics and Probability

According to a recent poll 29 of adults in a certain area

According to a recent poll, 29% of adults in a certain area have high levels of cholesterol. They report that such elevated levels "could be financially devastating to the regions healthcare system" and are a major conce ...

Suppose that the number of men equals the number of women

Suppose that the number of men equals the number of women, and that Vera is last on the preference list of every man. Prove that under every stable matching, Vera is matched to the same man. Who is the unlucky guy?

Random and independent samples of 80 recent prime time

Random and independent samples of 80 recent prime time airings from each of two major networks have been considered. The first network aired a mean of 110.7  commercials during prime time, with a standard deviation of 4. ...

A repeated-measures experiment comparing only two

A repeated-measures experiment comparing only two treatments can be evaluated with either a t statistic or an ANOVA. As we found with the independent-measures design, the t test and the ANOVA produce equivalent conclusio ...

List an example of each of the followinga two quantitative

List an example of each of the following: a. Two quantitative variables that are likely to have a positive linear relationship. b. Two quantitative variables that are likely to have a negative linear relationship. c. Two ...

Explain how the picture below helps us understand

Explain how the picture below helps us understand Christianity. Who were the thinkers that used these philosophers to understand their faith?

Is there any difference between the proportion of americans

Is there any difference between the proportion of Americans who wish they were rich and the proportion of Canadians who wish they were rich? A random sample of 1,000 Americans showed that 550 wish they were rich, while a ...

Anbsppsychologist would like to examine the effects of a

A psychologist would like to examine the effects of a new drug on the activity level of animals. Three samples of rats are selected with n = 5 in each sample. The rats in the first sample serve as a control and do not ge ...

Two population meansa tomato farmer with a very large farm

Two Population Means A tomato farmer with a very large farm of approximately 2200 acres had heard about a new type of rather expensive fertilizer which would supposedly significantly increase his production. The frugal f ...

The time it takes to complete a standardized exam is

The time it takes to complete a standardized exam is normally distributed with a mean of 70 minutes and a standard deviation of 10 minutes. How much time should be allowed for the exam so that 80% of the students will fi ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro