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..

Regression analysis, Regression line drawn as Y=C+1075x, when x was 2, and ...

Regression line drawn as Y=C+1075x, when x was 2, and y was 239. Given that y intercept was 11. Calculate the residual

Normal distribution, Lifts usually have signs indicating their maximum capa...

Lifts usually have signs indicating their maximum capacity. Consider a sign in a lift that reads “maximum capacity 1400kg or 20 persons”. Suppose that the weights of lift-users are

Midterm & final exams , Can you all help with midterms and final exams? mea...

Can you all help with midterms and final exams? meaning getting the assignment done within a couple hours?

Probability, a survey of grocery revealed 40 percent had a pharmacy, 50 per...

a survey of grocery revealed 40 percent had a pharmacy, 50 percent had a floral shop, and70 percent had a deli. suppose 10 percent of the stores have all three departments, 30 perc

What is the cumulative distribution function, The waiting time for an incom...

The waiting time for an incoming call at the front desk of mathematics Department follows an exponential distribution. During business hours, the average of the waiting times is 10

Index numbers, discuss the considerations to be borne in mind when construc...

discuss the considerations to be borne in mind when constructing index numbers

#title.What are the important principles that have to be ob., What are the ...

What are the important principles that have to be observed in the maintenance of discipline

Definition of batch costing and methods, Batch costing and method of costin...

Batch costing and method of costing whereby identical units produced are treated as a single unit & the cost incurred is shown to the whole of that batch instead of each individual

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