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According to a report released by CIBC entitled "Women Entrepreneurs: Leading the Charge," the average age for Canadian businesswomen in 2008 was 41. In the report, there was some indication that researchers believed that this mean age will increase. Suppose now, a couple of years later, business researchers in Canada want to test to determine if, indeed, the mean age of a Canadian businesswoman has increased. The researchers randomly sample 97 Canadian businesswomen and ascertain that the sample mean age is 43.4. From past experience, it is known that the population standard deviation is 8.95. Test to determine if the mean age of a Canadian businesswoman has increased using a 1% level of significance. What is the p-value for this test? What is the decision? If the null hypothesis is rejected, is the result substantive?
Assume the random variable x is normally distributed with a mean of 50 and a standard deviation of 7. Find the indicated probability. P(x>36)
A furniture cabinet maker produces two types of cabinets that house and hide plasma televisions.
A paper company is interested in estimating the proportion of trees in a 500-acre forest with diameters exceeding 2 feet. The company selects 25 plots (100 feet by 100 feet) from the forest and utilizes the information from the 25 plots to help..
A major razor blade manufacturer advertises
Test the Administration's claim
Describe a normal distribution. What two parameters determine its location and shape and what proportion of trucks can be expected to travel between 80,000 and 120,000 kilometres in the year?
A company makes a chemical product, and based on extensive experience they believe the critical-to-quality variable for this product has mean 410 and standard deviation 10.
What are the possible values of this random variable and draw the density function.
If the budget analyst wanted to build a regression model using only two independent variables to predict nursing salaries, what variables should be used?
Find a statistics study on Unemployment and explain the five-step process of the study.
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the deci..
The average revenue per retail user
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