A sample of 150 items was rated with respect to price and quality as follows A s
ID: 3393488 • Letter: A
Question
A sample of 150 items was rated with respect to price and quality as follows A survey of 100 people in the Kitchener area revealed them being female and 40 fully employed people Construct a contingency table and determine the probability random will be either a fully employed person or a female? An analyst is interested in the proposition that different age groups of following age music they prefer. A sample of 100 people was selected from groups.' under 25, 26 to 45. 46 and over. Their preferences surveyed, The results are as follows: Can we conclude there is a relationship between age and type of music preferred. Examine using the 5 step procedure at the .05 level. A candidate standing for or winning. She wants to tae the 95 history of elections. Define the sample size selected for the pilot poll. of students on a statistics exam are normally distributed with a meat 10. The examination board decide to place the top the '.indents in t bade A, the next 20 percent in Grade D, the next 40 peae the next 20 percent... Grade D, and the bottom 10 percent m Grade FExplanation / Answer
1.
Doing an Expected Value Chart,
Using chi^2 = Sum[(O - E)^2/E],
chi^2 = 32.58839184
With df = (a - 1)(b - 1), where a and b are the number of categories of each variable,
a = 3
b = 3
df = 4
Thus, the critical value is
significance level = 0.05
chi^2(critical) = 9.487729037
Also, the p value is
P = 1.45018*10^-6
As chi^2 > 9.4877, and P < 0.05, we REJECT THE NULL HYPOTHESIS.
Thus, there is significant evidence that price and quality are not independent. [CONCLUSION]
*******************************************
Hi! Please submit the next part as a separate question. That way we can continue helping you! Please indicate which parts are not yet solved when you submit. Thanks!
8.866667 14.93333 11.2 17.48 29.44 22.08 11.65333 19.62667 14.72