Difference between the mean potency – t - test, Basic Statistics

A researcher working for a drug company is interested in investigating the effect of storage on the potency of one of the company's drugs. 10 freshly produced bottles of the drug are randomly selected and the potency measured. Another 10 freshly produced bottles of the drug are randomly chosen and stored under controlled conditions for 6 months before the potency was measured. Summary statistics are displayed below:

1402_Difference between the Mean Potency – T - Test.png

(a) Carry out a t-test to investigate if there is a difference between the underlying mean potency for freshly produced drugs and that of drugs stored for 6 months. Notes:

(i) Refer to the instructions on page 1 of this assignment: "Hypothesis tests in this assignment".

(ii) Follow the step-by-step guide to performing a t-test

(iii) Once you have calculated your test statistic, it is necessary to use either a graphics calculator, SPSS, Excel or t-tables to determine the P-value.

(b) Does your confidence interval from part (a) contain the true difference? Briefly explain.

Posted Date: 3/22/2013 5:39:04 AM | Location : United States







Related Discussions:- Difference between the mean potency – t - test, Assignment Help, Ask Question on Difference between the mean potency – t - test, Get Answer, Expert's Help, Difference between the mean potency – t - test Discussions

Write discussion on Difference between the mean potency – t - test
Your posts are moderated
Related Questions
how to figure out cost of good available for sale, cost of sales, ending inventory

Volumes due from personal individuals or companies for products, and/or solutions equipped by the condition. Records Receivable does not involve amounts due from other companies, r

Bugsy?s Haulers, is considering the purchase or lease of a fuel tanker. The Purchase Option The purchase price is R4 000 000. This will be paid off as follows: R2 5

1. What size sample will be needed to construct a 95% confidence interval on a ballot issue if the estimate must be 2% of the actual percent. This issue looks very close in the el

1. Name several entities, attributes, activities, events, and state variables for the following systems: (a) A cafeteria (b) A grocery store (c) A laundromat (d) A fast

PC Shopping Network may upgrade its modem pool. It last upgraded 2 years ago, when it spent $115 million on equipment with a life of 5 years and a salvage value of $15 million. The

The elevator in the Math and Computer Building can stop at one of six ?oors. Four riders get on the elevator at the ?rst ?oor and the elevator heads up. Each rider picks a ?oor at

SPSS Assignment 1. Execute the following functions using SPSS.  a) Enter the following data Case Age Weight Gender

Are depreciation, depletion and amortization similar? In accounting the terms depreciation, depletion and amortization often involve the movement of costs from the balance s

For this second assignment you will have to use the OECD database to investigate possible changes in the policy preferences of Western welfare states. You have to develop (i) an in