A new vaccination is being used in a laboratory experiment to investigate whether it is effective. Thereare 285 subjects in the study. Is there sufficient evidence to determine if vaccination and diseasestatus are related?Vaccination Status Diseased Not Diseased TotalVaccinated 77 85 162Not Vaccinated 63 60 123Total 140 145 285d) Find the value of the test statistic. Round your answer to three decimal places.g) Make the decision to reject or fail to reject the null hypothesis at the 0.025 level of significance.h) State the conclusion of the hypothesis test at the 0.025 level of significance.

Question

A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There
are 285 subjects in the study. Is there sufficient evidence to determine if vaccination and disease
status are related?
Vaccination Status Diseased Not Diseased Total
Vaccinated 77 85 162
Not Vaccinated 63 60 123
Total 140 145 285


d) Find the value of the test statistic. Round your answer to three decimal places.


g) Make the decision to reject or fail to reject the null hypothesis at the 0.025 level of significance.
h) State the conclusion of the hypothesis test at the 0.025 level of significance.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Thickness measurement ancient prehistoric Native American Pot Shards discovered in Hopi Village are ...

A: Standard normal distribution: The standard normal distribution is a special case of normal distribut...

Q: The following random sample was selected from a normal distribution: 4, 6, 3, 5, 9, 3. A. Constru...

A: 90% Confidence Interval is given as:

Q: the larger the sample size, the a. more important the observed differencd b. more likely we are to r...

A: Click to see the answer

Q: In a crash test of 2018 Honda Odyssey​ minivans, collision repair costs are found to follow a normal...

A:  

Q: Chapter 08, Section 8.2, Problem 025 A city planner wants to estimate, with a 90% confidence level, ...

A: Solution: Note: Hello! As you have posted 2 different questions, we are answering the first question...

Q: For testing the difference between three or more sample means, the level of measurement is assumed t...

A: There are four types of scales: Nominal scale Ordinal scale Interval scale Ratio scale. Nominal sc...

Q: You wish to test the following claim (HaHa) at a significance level of α=0.005α=0.005. For the conte...

A: Click to see the answer

Q: A sample of 200 smokers were asked at what age they started smoking. The sample mean was18.3 years w...

A: Click to see the answer

Q: since critical values of t vary by sample size, before using the t table we must first calculate a. ...

A: b.degrees of freedom