hypothesis testing.., Basic Statistics

Assignment Help:
Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose a researcher selects a random sample of n=36 male undergraduates and a sample of n=25 females. On average, the males reported consuming M=2.45 drink per month and females had an average of M=1.28. Assume that the overall level of consumption for college undergraduates averages population mean=1.85 energy drinks per month, and that the distribution of montly consumption scores is approximately normal with a standard deviation of 1.2.

a) Did this sample of males consume significantly more energy drinks than the overall population average? Use a one-tailed test with a a=.01
b) Did this sample of females consume significantly fewer enery drinks than the overall population average? Use a one-tailed test with a a=.01

Related Discussions:- hypothesis testing..

one-way anova and hypothesis , Suppose we wanted to compare the somatic co...

Suppose we wanted to compare the somatic complaints (as measured on a scale known as the Physical Symptom Survey or PSS) of three groups of people; nonsmokers, smokers, and people

Detemine lambda , A.  A computer rejuvenation facility receives systems fro...

A.  A computer rejuvenation facility receives systems from the fleet at 24 systems/day (assume this is a Poisson process).  It takes the triage function 30 minutes (assumed exponen

A m, what is the relationship between the variance and the standard deviati...

what is the relationship between the variance and the standard deviation?

Linearity, The weight in Kg for each person was matched to their intake of ...

The weight in Kg for each person was matched to their intake of fat per day in Grams.  9 people were selected with the following results. Weight (Xi)         Fat (Yi) 45

Accounting cycle, The Steven Wholesale Co. uses the periodic inventory syst...

The Steven Wholesale Co. uses the periodic inventory system. The following transactions occurred during the month of May, the last month of the fiscal year that runs from June 1 t

F2 test distributed populations, What is F2 Test, These tests were based o...

What is F2 Test, These tests were based on the assumption that the samples were drawn from normally distributed populations, or more accurately that the sample means were normally

Central tendency, explain the graphical method of measure of central tenden...

explain the graphical method of measure of central tendency.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd