Find a p-value from a t-test, Basic Statistics

A random sample of 321 New Jersey and 77 Pennsylvania fast-food restaurants was selected from those fast-food restaurants in this study.  The restaurants were categorised into two levels according to the number of full-time employees after the law change: 5 or fewer, 6 or more. This information is

1323_Find a p-value from a t-test.png

(a) State the sampling situation for the difference between the estimated proportion of all New Jersey fast-food restaurants that had 5 or fewer full-time employees after the law change and the estimated proportion of all Pennsylvania fast-food restaurants that had 5 or fewer full-time employees after the law change.

(b)  Carry out a t-test to investigate if there is a difference between the proportion of all New Jersey fast-food restaurants that had 5 or fewer full-time employees after the law change and the proportion of all Pennsylvania fast-food restaurants that had 5 or fewer full-time employees after the law change.  Interpret your results, including the 95% confidence interval.

Notes:

(i) You must follow the step-by-step guide to performing a  t-test.

(ii) It is necessary to use either a graphics calculator, PASW (SPSS), Excel or  t-tables to determine the P-value.

(iii) You can check your calculations by using the Excel spreadsheet on Cecil.  Look under Assignment Resources.

 

Posted Date: 2/22/2013 12:49:20 AM | Location : United States







Related Discussions:- Find a p-value from a t-test, Assignment Help, Ask Question on Find a p-value from a t-test, Get Answer, Expert's Help, Find a p-value from a t-test Discussions

Write discussion on Find a p-value from a t-test
Your posts are moderated
Related Questions

Angular Histogram A method or technique for displaying the circular data, which involves the wrapping of the usual histogram around a circle. Each bar in the histogram is center

Acceptance Region A term related with the statistical signi?cance tests, which provides the set of values of a test statistic for which the null hypothesis cannot rejected. Supp

The Steven Wholesale Co. uses the periodic inventory system. The following transactions occurred during the month of May, the last month of the fiscal year that runs from June 1 t

2. Two disks, each of radius 10.0 cm, are charged so that one has a charge of +10.0 nC and the other has a charge of -10.0 nC. The disks are then placed with their flat faces facin

The amount of time it takes the IRS to send a refund to taxpayers is normally distributed with a mean of 12 weeks and a standard deviation of 3 weeks. What proportion of the taxpay

find quartile deviation from the student test marks of your own

I want to simulate observed variables for structural equation modeling. In real data it is assumed that observed variables are not error free variables, so should i also simulate e

discuss the nature and causes of the components of an economic time series?

what is the importance of time series