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A doctor studies the side effects of a drug on a male and female. Following data was obtained for a random sample of 300 people.
None
Mild
Moderate
Severe
Total
Male
22
31
48
30
131
Female
35
43
63
28
169
57
74
111
58
300
Construct the contingency table. Does this data suffest the side ffects of the drug and gender related? Use a=0.05
Construct a 95% confidence interval for the proportion of red candies. Using your same data determine if the proportion of green candies in a package of M&Ms is differen than what is claimed by the company.
A production line manager, J, is trying to design a manufacturing line, using the machines that her company already has. Based on the historical records
A survey showed that 24% of college students read newspapers on a regular basis and that 81% of college students regularly watch the news on TV. The survey also showed that 21% of college students both follow TV news regularly and read newspapers ..
Small bag of Skittles candies has following assortment: red (12), blue (5), orange (15), brown (0), green (16), and yellow (7). Create the probability distribution for x.
the number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient
1. give examples of two variables that are positively correlated and two that are negatively correlated.2. what
discuss some of the common uses of jq tests. do you think that iq tests should be used for these purposes? does the
An olympic archer is able to hit the bull's-eye 70% of the time. Assume each shot is independent of the others. If she shoots 6 arrows, what is the probablitly that she never misses?
a fair six-sided die with numbers 123456 is rolled independently 500 times. approximate the probability that the sum is
an airline wants to estimate the average number of unoccupied seats per flight. a random sample of 105 flights is
Suppose you study a random sample of 100 GRE verbal exams. Determine the probability that the average (mean) score in this sample will be between 485 and 515.
10 independent measurements were made of the pH level for both solutions, with the following data testing. Do the data disprove the scientist's claim? Use the 5% level of significance. What is the p-value?
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