1. Number of people who feel that the cost of a computer should be included in the cost of tuition at Trinity Washington University.
N = 16
12 = 1 yes
4 = 2 No
Conduct the table and the Relative frequency, find the mean, median and mode:
2. A wine manufacturer sells cabernet with a label that asserts an alcohol content of 11%. Sixteen bottles of this label are randomly selected and analyzed for alcohol content. The resulting observations are:
|
10.8
|
9.6
|
9.5
|
11.4
|
9.8
|
9.1
|
10.4
|
10.7
|
|
10.2
|
9.8
|
10.4
|
11.1
|
10.5
|
10.8
|
9.5
|
9.8
|
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it.
It is possible to perform hypothesis test on this case? Explain.
3. Medical tests were conducted to learn about drug-resistant tuberculosis . of one hundred forty-two test cases tested in New Jersey, nine drug-resistant. Of two hundred sixty -eight cases tested in Texas ,five were found to be drug-resistant.
Do these data suggest a statistically significance difference between the proportions of drug-resistant cases in the two states? Use a 0.02 level of significance and computed value of 2.37.