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
You will recall the function pnorm() from lectures. Using this, or otherwise, Dteremine the probability of a standard Gaussian random variable exceeding 1.3.  Using table(), or

Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0

Risk of Portfolios So far, we have seen the application of standard deviation in the context of risk in single investment. But usually most investors hold portfolios of securi

A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on the average, 10 pounds the first two weeks with a standard deviation of 2

Large Sample Test for Mean A random sample of size n (n > 30) has a sample mean    . To test the hypothesis that the population mean μ has a specified value  μ 0  let us formu

Chebychev inequality

get a questionnaire that captured age at first marriage

Application of the chi Square Test

MARKS IN LAW :10 11 10 11 11 14 12 12 13 10 MARKS IN STATISTICS :20 21 22 21 23 23 22 21 24 23 MARKS IN LAW:13 12 11 12 10 14 14 12 13 10 MARKS IN STATISTICS:24 23 22 23 22 22 24 2

Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. Find the replacement time that separates the top 20% from the