To determine whether caffeine consumption affectsthe ability to solve math problems, a researcher hadone group solve math problems after taking a cup of caffeinated drink and another group solve math problems after taking a cup of water. The group who took the caffeinated drink completed 35 problems in one hour and the group that had water completed 20 problems in one hour. Assuming the number of problems solved is normally distributed in each group, what statistical test would be used to test the research hypothesis? Explain your answer.

Question
Asked Nov 20, 2019
6 views

To determine whether caffeine consumption affectsthe ability to solve math problems, a researcher hadone group solve math problems after taking a cup of caffeinated drink and another group solve math problems after taking a cup of water. The group who took the caffeinated drink completed 35 problems in one hour and the group that had water completed 20 problems in one hour. Assuming the number of problems solved is normally distributed in each group, what statistical test would be used to test the research hypothesis? Explain your answer.

check_circle

Expert Answer

Step 1

According to the provided question, a study was conducted to test the caffeine consumption affects the ability to solve math problems. Participants in the study one group so...

help_outline

Image Transcriptionclose

Null hypothesis: in='nH Alternative hypothesis: H 2

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Engineers must consider the breadths of male heads when designing helmets. The company researchers h...

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

question_answer

Q: I have attached the picture of the question. Please answer section A, B, and C.

A: Part a:Denote μP, μA, μB, μC, μD as the mean effects of the placebo, and Drugs A, B, C, D respective...

question_answer

Q: Out of 300 people sampled, 78 preferred Candidate A. Based on this, estimate what proportion of the ...

A: From the given information,Out of 300 people sampled, 78 preferred candidate A.            So, here ...

question_answer

Q: which two scales of measurements always require nonparametric procedures?

A: Non-parametric tests are used when assumptions of parametric tests are not met, or the data does not...

question_answer

Q: The smart train arrives at a certain station every 20 minutes during peak commute times. We are inte...

A: If commuters arrive at random times before the next train arrival, a person's wait time follows a un...

question_answer

Q: if an original statement has new greater than or equal to 50, what is the alternative hypothesis

A: Consider that meu is greater than or equal to 50.

question_answer

Q: To determine whether caffeine consumption affects the ability to solve math problems, a researcher h...

A: Introduction:If the population standard deviation is unknown so that the sample standard deviation h...

question_answer

Q: For a confidence level of 95% with a sample size of 12, find the critical t value.

A: The critical t value is calculated by using the following steps:Under df column of the t distributio...

question_answer

Q: The lengths of adult males' hands are normally distributed with mean 187 mm and standard deviation i...

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