Posted by Gayla on Monday, June 23, 2008 at 5:12am.
Can people really identify their favorite brand of cola? At a= .05, is the correctness of the prediction different for the two types of cola drinkers? Since it is 2 x 2 table, try also a twotailes twosample z test for n1 = n^2 and verify that z2 is the same as your chisquare statistic.
COLA
Correct? Regular Diet Row
Cola Cola Total
yes,got
it right 7 7 14
no,got it
wrong 12 20 32
Col total 19 27 46

statistics  Writeacher, Monday, June 23, 2008 at 8:10am
To quote another teacher at Jiskha: "You will find here at Jiskha that long series of questions, posted with no evidence of effort or thought by the person posting, will not be answered. We will gladly respond to your future questions in which your thoughts are included."
Answer This Question
Related Questions
 Statistics and Probability  A research manager at CocaCola claims that the ...
 Statistics  Hi. I need to complete hypothesis tests and i am unsure if i used ...
 Math  A cafeteria has two soda machines. One machine has the following flavors...
 algebra. help!  A cafeteria has two soda machines. Once machine has the ...
 Math help  A cafeteria has two soda machines. Once machine has the following ...
 math  problem # 1 No Zeroes two numbers multiply to give 100 000. Neither of ...
 GEDWord Problems  Twoliter bottles of cola were selling for the same price as...
 Math  A picnic cooler contains different types of cola.12 regular, 8 cherry, 6 ...
 marketing  Answer the following questions: 1. Think of the value exchanged ...
 Statistics  Bottles of a popular cola contain a mean amount of 300 mL of cola. ...
More Related Questions