Part 1 You will be presented with several relationships and will be asked to write out the null and alternative hypotheses in the proper form. In this section you will: Indicate the directionality of the relationship and what are being compared. Write the null hypothesis (remember, this is in terms of the population). Write the alternative hypothesis (remember, this is in terms of the samples). 1. A medical student is designing a clinical trial to test a new depression medication. The student believes the medication will reduce the severity of patient depression. 2.A researcher is running a study examining a new pilot training software using virtual reality technology. The researcher feels pilots trained using VR training program will perform differently than traditionally trained pilots during a simulated landing task. 3. A police officer believes younger drivers get ticketed more than older drivers. A researcher at a local university has decided to test the police officer’s theory. 4. A tire company believes their new rubber compound will reduce the stopping distance of vehicles using their tires. A local engineer has decided to put their new compound to the test. 5. A researcher would like to investigate the idea that children who grow up with no siblings develop vocabulary skills at a different rate than children in large families.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 15PPS

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Related questions

Question

Part 1

You will be presented with several relationships and will be asked to write out the null and alternative hypotheses in the proper form. In this section you will:

Indicate the directionality of the relationship and what are being compared.
Write the null hypothesis (remember, this is in terms of the population).
Write the alternative hypothesis (remember, this is in terms of the samples).

1. A medical student is designing a clinical trial to test a new depression medication. The student believes the medication will reduce the severity of patient depression.

2.A researcher is running a study examining a new pilot training software using virtual reality technology. The researcher feels pilots trained using VR training program will perform differently than traditionally trained pilots during a simulated landing task.

3. A police officer believes younger drivers get ticketed more than older drivers. A researcher at a local university has decided to test the police officer’s theory.

4. A tire company believes their new rubber compound will reduce the stopping distance of vehicles using their tires. A local engineer has decided to put their new compound to the test.

5. A researcher would like to investigate the idea that children who grow up with no siblings develop vocabulary skills at a different rate than children in large families.

Expert Solution

Step 1

1.)

Direction: Two-tailed Test

2. Null Hypothesis, Ho: There is no difference in the mean performance of pilots using VR training program and traditional program i.e. $μ_{d} = 0$

3. Alternative Hypothesis, Ha: There is a significant difference in the mean performance of pilots using VR training program and traditional prog. $μ_{d} < 0$

2.)

Direction: Two-tailed Test

Null Hypothesis, Ho: There is no difference in the mean performance of pilots using VR training program and traditional program i.e. $μ_{1} - μ_{2} = 0$

Alternative Hypothesis, Ha: There is a significant difference in the mean performance of pilots using VR training program and traditional program i.e. $μ_{1} - μ_{2} \neq 0$