User Account

All Pages

What are the null and alternative hypotheses

Assignment Help Basic Statistics
Reference no: EM132529221

A researcher aims to investigate if hospital A has a higher survival rates than hospital B when it comes to heart transplants? Test at the .02 significance level. Hospital A: 820 survived; sample size = 1000 Hospital B: 420 survived; sample size = 600

a) What are the null and alternative hypotheses?

b) Draw the picture of the distribution of the test statistic. Include region (s) of rejection and non- rejection.

c) What is the critical value of the test statistic?

d) What is the calculated (computed) value of the test statistic?

e) State the decision rule and what is your conclusion?

Reference no: EM132529221

Questions Cloud

Intellectual property and torts and crimes : Discuss the potential violations related to intellectual property rights. What was the consideration for signing the non-compete agreement?
Make a budgeted statement of financial position : Identify the critical decisions (possibly implicit) that have been made that have led to resulting cash balance. Make a budgeted statement of financial position
Create a list of stakeholders for the ir planning committee : Assume that you have been tasked by your employer to develop an incident response plan. Create a list of stakeholders for the IR planning committee.
What would the spending variance : At a budgeted amount of 10,000 lounge chairs the manufacturing overhead is $50,000 variable, what would the spending variance
What are the null and alternative hypotheses : A researcher aims to investigate if hospital A has a higher survival rates than hospital B when it comes to heart transplants? Test at the .02 significance leve
Estimate project cost and time : Evaluate the essential components of a project plan that would meet industry standards and Critically evaluate project plans. Prepare an outline of a project
Determine the value of beta : Determine the value of beta, for P = 0.4 note:Use four digits after the decimal point.
How many units do need to produce : how many units do they need to produce? If the company budgets to need 4000 units to sell for a month, has a beginning inventory of 1000 units
Provide general information for upper management : Create an Executive Summary for your report that can be used as the first page of the final product to provide general information for upper management

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the average size of a city in the country

What is the average size of a city in the country? (This is the arithmetic mean of the populations of the cities, and is also the expected value)

  Probability of a wrong decision

The receiver is correct only 85% of the time. What is P(W), the probability of a wrong decision if the probabilities of receiving 0s and 1s are equally likely? What can you conclude from your result?

  Best estimate of the average savings

Based on the answer from question 9, calculate 90% confidence limit around your best estimate of the average savings.

  Is artificial intelligence (ai) real intelligence

Is Artificial Intelligence (AI) real intelligence? Can a computer learn and replace human thinking? AI can be grouped into three areas.

  Calculate the actual probability model

Describe how you would simulate the number of seatbelt-wearing drivers among the five cars.- Run at least 30 trials.

  Find probability that number who say oatmeal is favorite

Find the probability that the number who say oatmeal is their favorite cookie is (a) exactly four, (b) at least four, and (c) less than four.

  One way analysis of variance in excel

Is there evidence to suggest a difference in the mean waiting times at the four body shops? Use the .05 significance level.

  Confidence intervals for the proportion of the population

out of the 3,200 respondents, 640 answered yes and the remainder no. find 95% confidence intervals for the proportion of the population who would say yes (Z value for 95% is 1.96)

  Actuate large loads for a robot manipulator

An electro hydraulic actuator is used to actuate large loads for a robot manipulator, as shown in Figure DP9.5 [17]. The system is subjected to a step input, and we desire the steady-state error to be minimized. However, we wish to keep the overs..

  What assumptions are you making in given problem

For this sample, you found that the average return was 13.5% and the standard deviation was 1%. Test Pollard's claim at α = 0.05. What assumptions are you making in this problem?

  Carry out the test of equality of variances

Two independent random samples of 25 waiting times in each of the counters gives s1 = 2.5 minutes and s2 = 3.1 minutes. Carry out the test of equality of variances, using α = 0.02.

  What level must mean reduce third quartile

Assuming that the standard deviation and the normal shape are unchanged, to what level must the mean reduce so that 20 gallons per week is the third quartile rather than the mean?

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