Calculate a confidence interval for the population, Basic Statistics

Assignment Help:

A Shoe manufacturing company designs a new shoe (Brand A) and it wanted to compare its fit with that of the leading brands in the market Nike and Reebok. 27 Customers were asked to try one of the brands and rate its comfort which was measured on 1 (bad) to 9 (good) scales. The new shoe will be introduced only if it is preferred over the other 2 brands. The scores are given below:

              Nike                       Reebok                      Brand A

                7                              4                              3

                5                              6                              5

                8                              7                              8

                7                              8                              5

                5                              4                              9

                6                              6                              7

                8                              3                              8

                5                              7                              5

                7                              6                              6

 

                H (1): Is Brand A preferred over Nike?

                H (2): Is Brand A preferred over Reebok?

The CEO of supermarket 'Taste' thinks of opening a branch in another shopping mall in Hong Kong. But before that he wants to study the consumer's preference for a particular store based on the variety of items sold in that store. He would compare his store with the leading supermarket chains like PNS and Welcome in a study in which 30 consumers participate. They are given a questionnaire which listed the variety of products sold in a particular departmental store for different item categories and asked them to rate their preference for that store which was measured on a 10 pointer scale, 1 (less preferred) and 10 (more preferred). These are then averaged for a single consumer and are given below in a table.

             PNS                        Welcome                     Taste

                3                              4                              6

                4                              6                              7

                6                              5                              4

                7                              4                              8

                8                              3                              9

                9                              6                              4

                6                              8                              5

                7                              6                              4

                6                              4                              7

                5                              8                              7

The CEO will open a branch only if consumers prefer 'Taste' departmental store over PNS and Welcome. What will be his decision?


Related Discussions:- Calculate a confidence interval for the population

According to you are the biggest challenges of moving ifrs, What according ...

What according to you are the biggest challenges of moving to IFRS? Manager 1: Well, there are going to be a lot of changes. IFRS is known to be more principle based than the

Histogram, difference between histogram and historigram

difference between histogram and historigram

Difference in the loss in man-hours - accidents in firms, An occupational h...

An occupational health inspector was interested in determining whether there is a difference in the loss in man-hours due to accidents  by introducing a new safety programme.  The

estimate the mean chloride concentratio, An article in the Journal of Env...

An article in the Journal of Environmental Engineering (Vol. 115, No. 3,1989, pp. 608-619) reported the results of a study on the occurrence of sodium and chloride in surface str

Homework, Problems 15. An art professor was interested in seeing what si...

Problems 15. An art professor was interested in seeing what size group is best to prime the pump so to speak to encourage strangers to gather together in front of various exhibi

Regression, Regression line drawn as Y =C+1075x, when x was 2, and y was 23...

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

Confidence interval, 1. Provide an overview of the scenario and the variabl...

1. Provide an overview of the scenario and the variable involved. Include an explanation of why and how constructing the confidence interval adds value. I.e., why might this inform

Time series, Explain how you would decide whether to use the additive model...

Explain how you would decide whether to use the additive model or the multiplicative model to analyse a time series.

Correlation and regression, What is regression analysis ? Discuss the relat...

What is regression analysis ? Discuss the relation between ''correlation coefficient'' and the ''regression coefficients''?

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