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Manager Hammond suspects that 50% of his workforce are over 65 years old. A survey of 16 of the workforce shows that 7 are over age 65. What can be said about Hammond assertion?
A firm has analysed its sales and profitability and found that its profit can be represented as: F = -100 + 100Q - 5Q2.
Can we reject the psychologist's claim that the proportion of married couples for whom her program can prevent divorce is at least 76%?
the laurier companys brand has a market share of 30. suppose that 1000 consumers of the product are asked in a survey
Use Excel's NORMDIST function to find the EMV for each alternative. Which is the best decision now? Why can't this be represented in a decision tree?
If the two winners are drawn with replacement, what is the probability that a friend of the president wins each time?
A data set whose original x values ranged from 120 through 351 was used to generate a regression equation of y=0.06x + 14.2.
Five hypotheses are to be tested using five independent test statistics. A common significance level (size) for each test is desired which ensured that the probability of rejecting at least one hypothesis is 0.4, when all five hypothesise are true..
A survey found that women's heights are normally distributed with mean 63.6 in and standard devistion 2.5 in. a branch of the military requires women's heights to be between 58 in and 80 in. What is the percentage of women who meet the height requ..
Sort the data by units sold, high to low Sort the units sold using an icon set, where green corresponds to high sales levels, yellow to medium sales, and red to low sales. The sort should show all the green icons first, followed by yellow, and then..
a. What is the probability of randomly selecting 1 woman with a height less than 65.5 inches?
Identify the level of measurement (nominal, ordinal, interval, ratio) for the numbers 33 and 115.
use the data set and the indicated number of classes to construct a an expanded frequency distribution b a frequency
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