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Asurvey of magazine subscribers showed that 45.8% rented a car during the past 12 months for business reasons, 54% rented a car during the past 12 months for personal reasons, and 30% rented a car during the past 12 months for both business and personal reasons.
a. What is the probability that a subscriber rented a car during the past 12 months for business or personal reasons?
b. What is the probability that a subscriber did not rent a car during the past 12 months for either business or personal reasons?
questionpart athe quarterly earnings in millions of dollars of a large textile manufacturing company have been
A high of 10 was possible. A sample of five tests was selected from each group. The test grade results were: At the 0.01 level, what is the critical value?
Construct a 95 percent confidence interval for the true mean.
Clearly a straight line model does not accurately describe what is going on with this data. Does this mean there is no relationship between income and time?
For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation:
Test hypothesis that intake of linoleic acid in this group is lower than that of general population. Also, calculate p-value for hypothesis test.
q1. researchers asked a sample of 50 1st grade teachers and a sample of 50 12th grade teachers how much of their own
In order for Samuel's average calorie intake to equal a daily average of 2200 calories, how many calories of food must he consume on Thursday?
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
Assume that 5% of men and only .25% of women are colorblind. A colorblind person is chosen at random:
What is the variance and standard deviation (of profit, NOT of tire life) for producing an all weather tire? Of producing a high performance tire?
Test at .01 level of significance if mean number of number of calories for Brand A 16 oz. yogurt cups is greater than mean calories for Brand B 16 oz. yogurt cups.
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