Healthy subjects aged 18 to 40 participated in a study of eating habits. Subjects were given bags of potato chips and bottled water and invited to snack freely. Was there a difference between men andwomen in the number of potato chips consumed? Here are the data on grams of potato chips consumed.Group n Mean Standard DeviationMales 9 38 15Females 11 12 10What is the 90% confidence interval for the difference in mean number of potato chips consumed between men and women. Assuming the correct critical value is 1.645 (which it is not), calculate theconfidence interval using the information above.O -4 to 5616 to 36O 23 to 29O 24 to 28

Given that Sample sizes n1=9 , n2=11 Sample means x1=38 , x2=12 Standard deviation s1=15 , s2=10

Answered: healthy aged women in the number of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The ages of undergraduate students at two universities (one in the east and one in the west) are being compared. Researchers want to know if there is a difference in the mean age of students at the two universities. The population standard deviations are known. The following data shows the results of samples collected at each institution: School Location n (sample size) sample mean ( ) population standard deviation West 33 25.78 6.29 East 35 23.16 7.52 What is the value of the test statistic for the previous problem? (Enter your answer as a positive value even if you calculated a negative test statistic value i.e. if you calculated -1.311 you should enter 1.311). Round your answer to 3 decimal places.
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