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In USA Today (Sept. 5, 1996), the results of a survey involving the use of sleepwear while traveling were listed as follows:
Male
Female
Total
Underwear
0.220
0.024
0.244
Nightgown
0.002
0.180
0.182
Nothing
0.160
0.018
0.178
Pajamas
0.102
0.073
0.175
T-shirt
0.046
0.088
0.134
Other
0.084
0.003
0.087
(a) What is the probability that a traveler is a female who sleeps in the nude?
(b) What is the probability that a traveler is male?
(c) Assuming the traveler is male, what is the probability that he sleeps in pajamas?
(d) What is the probability that a traveler is male if the traveler sleeps in pajamas or a T-shirt?
Find the combination of Model Alpha and Model Beta that maximizes the firm profit. What is firm's profit at this profit mix and shows the combinations of Model Alpha
question 1 there are 25 people in a room. what is the probability that at least two have the same birthday?question 2
An article in USA Today stated that "Internal surveys paid for by directory assistance providers show that even the most accurate companies give out wrong numbers 15% of the time."
When doing hypothesis testing we have two ways of making a decision - the critical value method and the p-value method. While both give the same results in terms of determining whether to reject or not reject the null hypothesis
would this prove that they are exceeding their goal, using = .025?
The sales of the bicycle (in thousands of dollars) and also the levels of media expenditure (in thousands of dollars) during the test month are recorded. State the multiple regression equation.
If the net regression coefficients in the population are significantly different from zero, what can be included? No relationship exists between the dependent variable and any of the independent variables.
1.at what age do babies learn to crawl? does it take longer to learn in the winter when babies are often bundled in
The standard deviation was $21,330. At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank sum test, evaluate the significance of the results, assuming there are no ties.
The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.
Suggest reasonable values for n and p (binomial) or mu (poisson) for your example. Calculate the mean and standard deviation of the distribution for your example.
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