
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Question
9.1 Q7
Need test statistic, p value, claim, and interval

Transcribed Image Text:K
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 39 of the 46 subjects treated with echinacea developed rhinovirus
infections. In a placebo group, 79 of the 95 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect
on rhinovirus infections. Complete parts (a) through (c) below.
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo.
What are the null and alternative hypotheses for the hypothesis test?
OA. Ho: P1 SP2
H₁: P₁ P₂
OD. Ho: P1 P2
H₁: P₁ P2
Identify the test statistic.
z = 5.13
(Round to two decimal places as needed.)
4
OB. Ho: P12P2
H₁: P₁ P2
(...
OE. Ho: P1 P2
H₁: P₁ P2
c. Ho: P1 P2
H₁ P₁
P2
OF. Ho: P1
H₁: P₁
P2
P₂
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps with 2 images

Knowledge Booster
Similar questions
- Because of low results, the school principal decided to change the teacher. The last test with the previous teacher, which was written by 18 people, showed an average of 58 with deviation of 12. A month later, a new teacher conducts a similar test that is written by 19 people, with an average score of 60, and the deviation of 14. Calculate the t-test statistic. Select answer from the options below A)The t-test statistic is -0.467 . B)The t-test statistic is 0.828. C)The t-test statistic is 0.467. D)The t-test statistic is -1.688 .arrow_forwardClaim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 155 adult males, the mean pulse rate is 68.1 bpm and the standard deviation is 10.8 bpm. Complete parts (a) and (b) below. a. Express the original claim in symbolic form. V bpm (Туре decimal. Do not round.)arrow_forwardMeasures average (central tendency/ location). The test scores of a class of students are presented by the following date set: 88, 86, 66, 50, 65, 90, 98, 100, 76, 89, 66, 89, 88, 90, 91, 90, 40, 77, 82, 86 Note: Recall the definitions of measures of central tendency. 10Extra: Subtract 5 points from each score. How would requested measures of average change? Generalize and make a conjecture. Find and compare ranges / midranges of both data sets. Find the mean, median, and mode. Mean, median, modearrow_forward
- 1. what these statistics tell you about the skewness of the variables.arrow_forwardDetermine the test statistic x2 and the pvaluearrow_forward7. Students that are accepted to Harvard University typically have an SAT score of 2100 or higher. In 2012, the average (i.e., mean) SAT score was 1490 with a standard deviation of 240. a) Convert the SAT score typically required to get into Harvard into a z-score. b) If an applicant's z-score for their SAT was 3.5, what would their raw SAT score be? c) IQ scores are standardized scores with an average of 100 and a standard deviation of 15. What IQ score is typically required to get into Harvard (hint: convert Harvard's SAT requirement into an IQ score) a) = b) =arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman

MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc

Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning

Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning

Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON

The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman

Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman