User Account

All Pages

Find critical value to set up decision rule to test claim

Assignment Help Basic Statistics
Reference no: EM13113557

A researcher wants to determine if the average performance on a standardized business management test is significantly less for students with undergraduate degrees in engineering as compared with the students with undergraduate degrees in liberal arts. The data on the sample sizes, the means of independent samples from the two populations, and the standard deviations are summarized below:

Engineering Liberal Arts
1 = 21.45 2 = 24.6
σ1 = 3.46 σ2 = 2.99
n1 = 50 n2 = 50

If the level of significance is 0.05, what is critical value to set up the decision rule to test the claim that the liberal arts students perform better than engineering students on average?

2.33

2.57

1.28

1.96

1.65

Reference no: EM13113557

Questions Cloud

What is indication about the spacing between molecules : Compare the volume of 1.0 g of bromine, Br2, as a solid, liquid, and gas. The density of solid bromine just below the melting point of -7°C is 3.2 g/mL, of liquid bromine at 25°C is 3.1 g/mL.
Question on statistics-null hypothesis : Ford Taurus travels 21 mi. while consuming exactly 1 gallon of gas. You developed a modification to the engine you believe increases the distance. If you want to justify your claim of increased mileage by using a hypothesis test
What is the smallest sample size : What is the smallest sample size needed to estimate the mean amount reimbursed to within 50 cents with 90% confidence, if a preliminary study indicates that the sample standard deviation of all amounts reimbursed is $3.00
What assumptions are necessary for the derivation : For a gas sample of N molecules that consists of N1 molecules of mass m1 and N2 molecules of mass m2, follow through a derivation which led to the result PV=1/3mv2 and PV = nRT.
Find critical value to set up decision rule to test claim : If the level of significance is 0.05, what is critical value to set up the decision rule to test the claim that the liberal arts students perform better than engineering students on average?
Comparing standard deviations : A real estate agent wants to compare the variation in the selling price of homes on the oceanfront with those 3 blocks away A sample of 21 oceanfront homes sold within the last year revealed the standard deviation of the selling prices was 45,600.
Description of testing hypotheses on data set : A compute manufacturer is about to unveil a new,faster PC.The new PC is faster but intial tests incidcate there is more variation in the processing time.
How to conclude tha stocks have a different variation : Mr. Smith had 11 stocks that averaged 11.3 percent with a standard deviation of 3.2 percent. At the .02 level of significance, can we conclude that Mr. Jones' stocks have a different variation?
Correlation between office space per worker and rental rate : For the sample of 32 lg us cities the correlation between the mean # of sq ft per office worker and the mean monthly rental rate in the central business district is the -.363 at the .05 significance level

Reviews

Write a Review

Basic Statistics Questions & Answers

  Problem of bayes analysis

Assume that a patient is believed to have one of two diseases, denoted by D1 and D2 with P(D1)=0.40 and P(D2)=0.60 and that medical research has determined the probability associated with each symptom that may accompany the diseases.

  Computing test value using variances unequal formula

Determine the test value? Use α = 0.05. (Use the variances unequal formula).

  Confidence intervals for your data set

Construct the following confidence intervals for your data set:

  Determine the median and standard deviation

Listed below are the commissions earned ($000) last year by the sales representatives at the Furniture Patch, Inc.

  Testing two population means differ significantly

At the .05 significance level, can we conclude that there is a difference in their mean times?

  Estimate the mean amount of time

An advertising agency that serves a major radio station wants estimate the mean amount of time that the station's audience spends listening to the radio daily.

  Test of hypothesis for difference between proportions

To market a new white wine, a winemaker decides to use two different advertising agencies one operating in the East and one in the West. After the white wine has been on the market for 8 months, independent random samples of wine drinkers are take..

  Anova versus t-test

How can you tell when you should use the ANOVA versus a t-test? What is one problem with using the ANOVA when the t-test is the appropriate data analysis?

  Determine the rejection region

State the alternate hypothesis for this study? What critical value should be used to determine the rejection region? Use the 1 proportion Z-test.

  Sample of stipends of teaching assistants in economics

A random sample of stipends of teaching assistants in economics is listed below. Is there sufficient evidence at the alpha=.05 level to conclude that the average stipend different from $15,000? The data is listed below:

  Probability values based on the binomial distribution

For such groups of 800, would it be unusual to get 687 consumers who recognize the Dull Computer Company name?

  Estimation of linear regression model

Please use the regression procedure within Excel under Tools > Data Analysis to construct this equation.

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