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..

Joint probability, Two construction contracts are to be randomly assigned t...

Two construction contracts are to be randomly assigned to one or more of three firms. Numbering the firms I, II, and III, let X1 be the number of contracts assigned to firm I, and

Tools., what do you mean by correct and remedy the equipment trouble as ins...

what do you mean by correct and remedy the equipment trouble as instructed by the expert.

Probability, Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3...

Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3. (a) If A and B are independent then compute the probability that Both A and B happen

Numerical annalysis, the number x = 37.46235 is round off to four significa...

the number x = 37.46235 is round off to four significant figures. compute the absolute error

Computing observed probability values , For an alignment shown below derive...

For an alignment shown below derive log-odds score for the column 1 only by a)  Computing observed probability values b)  Expected probability values TAGCTT AAGCTC T

Probability , Set 1: 1 2 3 4 5 Set 2: 1 13 25 31 42 Set 3: 10 16 24 25 4...

Set 1: 1 2 3 4 5 Set 2: 1 13 25 31 42 Set 3: 10 16 24 25 40 Set 4: 5 10 15 20 25 1. Is one of these sets of numbers more likely to win the Gopher 5 than any of the others? Exp

Bond calculation, Calculate the original price of the bond. Bonds were issu...

Calculate the original price of the bond. Bonds were issued at $200,000 of x% ten-year term bond at an effective annual interest rate (market rate) of x%. The bonds pay interest se

Quartile deviation, find quartile deviation from the student test marks of ...

find quartile deviation from the student test marks of your own

Binomial probability distribution, if the probability of getting caught cop...

if the probability of getting caught copying someone else s exam is 0.2 find the probability of not getting caught in 3 attempts assume independence

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