Test the null hypothesis, Applied Statistics

A consumer preference study involving three different bottle designs (A, B, and C) for the jumbo size of a new liquid detergent was carried out using a randomized block experimental design, with supermarkets as blocks.  Specifically, four supermarkets were supplied with all three bottle designs, which were priced the same. The table below shows the number of bottles of each design sold in a 24-hour period at each supermarket. Using these data, it is determined that SST = 586.1667, SSB = 421.5667, and SSE = 1.8333.

                                                 Supermarkets, j

       Bottle Design, i               1       2       3       4

               A                               16     14       1       6

               B                              33     30     19     23

               C                              23     21       8     12

a) Test the null hypothesis Ho that no differences exist between the effects of the bottle designs on mean daily sales.  Set α = 0.05. Can we conclude that the different bottle designs have different effects on sales?

b) Test the null hypothesis Ho that no differences exist between the effects of the supermarkets on mean daily sales. Can we conclude that the different bottle designs have different effects on mean sales?

Posted Date: 3/8/2013 4:04:30 AM | Location : United States







Related Discussions:- Test the null hypothesis, Assignment Help, Ask Question on Test the null hypothesis, Get Answer, Expert's Help, Test the null hypothesis Discussions

Write discussion on Test the null hypothesis
Your posts are moderated
Related Questions
The file Midterm Data.xls has a tab labeled "Many vs. S&P" which presents historical price data for several assets, a volatility condition (VIDX = 1 if the NYSE volatility is grea

Types of cost-reimbursable contracts are:   Cost Plus Fixed Fee contract (CPPF): Compensation is based on a fixed sum independent of the final project cost. The customer a

Your employer, Quick Hit Agency (QHA), is a debt collections agency. The company specializes in collecting small accounts. QHA does not deal in large accounts and does not take on

A.The coupon rate of Erie-Chicago Rail is 7%. The interest rate of Florida municipal bond with equal risk is 6%.  At what tax rate the two bonds are as good as each other B.Supp

1. For each of the following variables: major, graduate GPA, and height: a. Determine whether the variable is categorical or numerical. b. If the variable is numerical, deter

Asymmetric proximity matrices Immediacy matrices in which the off-diagonal elements which are, in the i th row and j th column and the j th row and i th column, are not essent

Question Following the general methodology used by econometricians as explained in the session for week 1 (eight steps), explain how you would proceed to determine if a good com

A medical researcher has 100 bone cancer patients in a study. Every patient's condition is one of six types, type \A" to type \F". The 100 patients split as follows: x There

practical application of standard error

The proportion of American Express credit-card holders who pay their credit card bill in full each month is 23%; the other 77% make only a partial or no payment. (a) In a random