Males and females in occupation
In a particular occupation, a random sample of 210 men found that 65 smoked. In a random sample of 240 women, 87 smoke. Is there enough evidence to conclude males and females in this occupation have different smoking habits?
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A machine produces marbles of 3 different colors, aqua, black, and canary with the corresponding probabilities: PA , PB , PC . Get n marbles from this machine. Find the probability of each event.
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In random samples of 900 men and 400 women it is found the 99 men and 36 women suffer from kidney stones. Is there statistical evidence that the proportion of male kidney stone sufferers is greater than the proportion of female kidney stone suffer
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The mean balance that college students owe on their credit cards is $896 with a standard deviation of $104. If all possible random samples of size 169 are taken from this population, determine: The name of the sampling distribution.
An apprentice's decision making philosophy is to always be very optimistic with company funds as promotions for an apprentice only occur if they take risks. Given that he has no probabilities to direct his choices he most likely will use the crite
Information about a regression analysis includes an intercept of 59.99 and a negative slope of 1.49. Make a prediction of y based on an x value of 20.
The sum of the ranks for the day students was determined to be 184.5. Compute the test statistic Z. Use a = 0.05 and test to determine if there is a significant difference in the populations of the scores of the two groups.
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