Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Hypothesis test for two means

The department is concerned that dual degree students may be receiving lower grades than regular students. Two independent random samples have been selected 150 observations from population 1 (dual degree students) and 150 from population 2 (MBA students). The sample means obtain are X1(bar) =79 and X2(bar) = 82. It is known from previous studies that the population variances are 4.5 and 5.0 correspondingly. Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades? Make clear.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922781

Have any Question? 


Related Questions in Statistics and Probability

Assignment- sampling distributions and estimation

Assignment- Sampling Distributions and Estimation; Hypothesis Testing 1. In a simple random sample from a population of several hundred that's approximately normally distributed, the following data values were collected. ...

1e model for a simple linear regression

1. Recall the model for a simple linear regression:  where  is Normally distributed with mean 0 and variance , where Cov( ) = 0 for all i, j and Cov(  = 0 for all i,j.A day trader wishes to develop a prediction model for ...

This course is designed to provide you with the knowledge

This course is designed to provide you with the knowledge and skills in application, evaluation, analysis, and interpretation of biostatistical data used to inform public health programs, policy, and practice. View the o ...

1 must all experiments include a control group explain2 in

1. Must all experiments include a control group? Explain. 2. In what way do researchers take a risk if they do not pilot test the independent variable they plan to use in an experiment?

Consider a decision-maker whose subjective probability

Consider a decision-maker whose subjective probability distribution over the set of possible states Ω is p = (p(s)) We ask him to tell us his subjective probability distribution, but he can lie and report any distributio ...

Please provide answer the question to the fourth decimal

Please provide answer the question to the fourth decimal place.  I am just checking my answer...  I completed the answers for A and B below, which you need to solve C. Do social shoppers differ from other online consumer ...

Jullian was curious if regular excise really helps weight

Jullian was curious if regular excise really helps weight loss,she decided to perform a hypothesis test. A random sample of 5 Kansas State students was chosen. The students took a 30-minute exercise every day for 6 month ...

All the customers who entered a store on a particular day

All the customers who entered a store on a particular day were given a surgery to fill out concerning their opinions of the service at the store? What type of sample is this? I can't decide between voluntary response or ...

1 what is an interaction2 how many interactions can be

1. What is an interaction? 2. How many interactions can be tested in a 2 x 2 design? In a 3 x 3 design? In a 2 x 2 x 3 design? 3. Why do researchers use expericorr designs?

Business quantative analysis and statistics 1project

BUSINESS QUANTATIVE ANALYSIS AND STATISTICS 1 Project Management Scenario: You are a consultant with expertise in project management strategies. Select a possible project management situation from your current or future ...

  • 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