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

Assignment Help:

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.

 


Related Discussions:- Find a p-value from a t-test

Correlation, difference between positive and negative correlaiton

difference between positive and negative correlaiton

Cash discount., Cash discount A payment received, given if payment is comp...

Cash discount A payment received, given if payment is completed within a stated age of occasion, Refer to TRADE DISCOUNT,

Probabilities, 54% of teens own a music player, the probability that both t...

54% of teens own a music player, the probability that both the parent and the teen own music player is 0.264, what is the probability that parent owns music player given that teen

Why do jovian planets have rings, Why do Jovian planets have rings? - Ring...

Why do Jovian planets have rings? - Ring particles cannot have lasted for billions of years so the particles we see today must have been created recently. - New ring particles

Derive the pure strategy nash equilibrium, There are two firms competing in...

There are two firms competing in quantity. Firm 1 and 2 set their quantities supplied, q1 and q2, respectively. The production costs are zero. The market price is given by

Poisson distribution, uuuuioooooo zAZ az; z;;ZuazA; Zazx A Za zA ZA xza XZ ...

uuuuioooooo zAZ az; z;;ZuazA; Zazx A Za zA ZA xza XZ Axz AZX A xA XZ axz AZX A zxA ZXa oxz aOX AxzAAX axz

Draw a scatter diagram relating cigarette, The following data relating ciga...

The following data relating cigarette smoking and death rates for lung cancers in 14 states in the USA. The data are based in part on records concerning 1960 cigarette tax receipts

Probability, a survey of grocery revealed 40 percent had a pharmacy, 50 per...

a survey of grocery revealed 40 percent had a pharmacy, 50 percent had a floral shop, and70 percent had a deli. suppose 10 percent of the stores have all three departments, 30 perc

Absorption distributions , Absorption distributions Probability distribu...

Absorption distributions Probability distributions which represent the number of 'individuals' (such as particles) which fail to cross the speci?ed area containing the hazards o

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