Homework Help is Here – Start Your Trial Now!
Math
Statistics
group took 40 mg of ginkgo 3 times a day for 6 weeks. The 115 participants assigned to the control group took a placebo pill 3 times a day for 6 weeks. At the end of 6 weeks, the Wechsler Memory Scale was administered. Higher scores indicate better memory function. Summary values are below in the table. Ginkgo Placebo 104 5.7 0.6 115 5.5 0.5 We are testing for evidence that taking 40mg of ginkgo 3 times a day is effective in increasing mean performance on the Wechsler Memory Scale. Is this problem about means or proportions? Is this problem one sample or two sample? Set up the hypothesis Ho- Hai Find the test statistic (round to decimal places) Test statistic Find the p-value (round to 4 decimal places) p-value What is the degrees of freedom by calculator? (Round to the nearest whole number) What is the degrees of freedom by hand? Do we reject or fail to reject the null hypothesis?

group took 40 mg of ginkgo 3 times a day for 6 weeks. The 115 participants assigned to the control group took a placebo pill 3 times a day for 6 weeks. At the end of 6 weeks, the Wechsler Memory Scale was administered. Higher scores indicate better memory function. Summary values are below in the table. Ginkgo Placebo 104 5.7 0.6 115 5.5 0.5 We are testing for evidence that taking 40mg of ginkgo 3 times a day is effective in increasing mean performance on the Wechsler Memory Scale. Is this problem about means or proportions? Is this problem one sample or two sample? Set up the hypothesis Ho- Hai Find the test statistic (round to decimal places) Test statistic Find the p-value (round to 4 decimal places) p-value What is the degrees of freedom by calculator? (Round to the nearest whole number) What is the degrees of freedom by hand? Do we reject or fail to reject the null hypothesis?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
See similar textbooks
icon
Related questions
Question
Many people take ginkgo supplements advertised to improve memory. In a study, elderly adults were assigned to the treatment group or control group. The 104 participants who were assigned to the treatment group took 40 mg of ginkgo 3 times a day for 6 weeks. The 115 participants assigned to the control group took a placebo pill 3 times a day for 6 weeks. At the end of 6 weeks, the Wechsler Memory Scale was administered. Higher scores indicate better memory function. Summary values are below in the table. n Ginkgo 104 5.7 0.6 Placebo 115 5.5 0.5 We are testing for evidence that taking 40mg of ginkgo 3 times a day is effective in increasing mean performance on the Wechsler Memory Scale. Is this problem about means or proportions? Is this problem one sample or two sample? Set up the hypothesis Ho- Hại Find the test statistic (round to decimal places) Test statistic Find the p-value (round to 4 decimal places) p-value What is the degrees of freedom by calculator? (Round to the nearest whole number) What is the degrees of freedom by hand? Do we reject or fail to reject the null hypothesis?
Transcribed Image Text:Many people take ginkgo supplements advertised to improve memory. In a study, elderly adults were assigned to the treatment group or control group. The 104 participants who were assigned to the treatment group took 40 mg of ginkgo 3 times a day for 6 weeks. The 115 participants assigned to the control group took a placebo pill 3 times a day for 6 weeks. At the end of 6 weeks, the Wechsler Memory Scale was administered. Higher scores indicate better memory function. Summary values are below in the table. n Ginkgo 104 5.7 0.6 Placebo 115 5.5 0.5 We are testing for evidence that taking 40mg of ginkgo 3 times a day is effective in increasing mean performance on the Wechsler Memory Scale. Is this problem about means or proportions? Is this problem one sample or two sample? Set up the hypothesis Ho- Hại Find the test statistic (round to decimal places) Test statistic Find the p-value (round to 4 decimal places) p-value What is the degrees of freedom by calculator? (Round to the nearest whole number) What is the degrees of freedom by hand? Do we reject or fail to reject the null hypothesis?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS