Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Find the test statistic value for two mean tests using equal variance formula.

In testing the equality of the two means below, what is the test statistic? (Use the equal variances formula)

 

Sample 1

Sample 2

Sample size

12

8

Sample mean

115

80

Sample variance

700

450

a.0.28
b.3.27
c.2.37
d.0.14

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922100

Have any Question? 


Related Questions in Statistics and Probability

Since 1865 african americans native americans women latino

Since 1865, African Americans, Native Americans, Women, Latino Americans, Asian Americans, other Minority Groups (native-born and immigrant), Homosexuals, Immigrants from all over, Religious Groups, etc. all agitated for ...

1 what is the difference between a stratum and a cluster2

1. What is the difference between a stratum and a cluster? 2. What is the drawback of obtaining random samples by telephone? 3. In what way would the use of sampling improve the accuracy of the United States census?

Part 11 a polling firm conducted a poll of 1000 randomly

Part 1. 1. A polling firm conducted a poll of 1000 randomly selected Georgia Stat University students and discovered that 47% of them voted for Bush in 2004. Nationwide Bush received 51.2% of the popular vote. Using this ...

A professor has learned that four students in her class of

A professor has learned that four students in her class of 18 will cheat on the exam. She decides to focus her attention on seven randomly chosen students during the exam. a. What is the probability that she finds at lea ...

Using size as the independent variable and cost as the

Using "size" as the independent variable and "cost" as the dependent variable, draw a scatter plot. b. Does it appear from inspection that there is a relationship between the variables? Why or why not? c. Calculate the l ...

Risk taking is an important part of investing in order to

Risk taking is an important part of investing. In order to make suitable investment decisions on behalf of their customers, portfolio managers give a questionnaire to new customers to measure their desire to take financi ...

Use a fast food restaurant and for 5 types of food from the

Use a fast food restaurant and for 5 types of food from the restaurant, list the fat grams and its total calories. Is there a linear relationship between the two variables? The double whopper has 900 calories and 56 gram ...

Assignmentfirst problem a test consists of 10 truefalse

Assignment First problem: A test consists of 10 true/false questions. To pass the test a student must answer at least 6 questions correctly. If a student guesses on each question, what is the probability that the student ...

1 the total variance in a set of scores can be partitioned

1. The total variance in a set of scores can be partitioned into two components. What are they, and how do they differ? 2. What are some factors that contribute to error variance in a set of data? 3. Generally, do resear ...

1 what are some ways in which scientists get ideas for

1. What are some ways in which scientists get ideas for their research? 2. Why can theories not be proved or disproved by research? 3. Given that proof and disproof are impossible in science, how does scientific knowledg ...

  • 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