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Continue using the Cake Mix Assignment Data workbook.
Use a new Excel workbook file for this assignment.
1.a study was conducted to explore the relation between alcohol consumption and hypertension. 7400 nurses were surveyed
actions to improve the repair time of equipment used to produce electronic components were taken two years ago. the
Develop a probability for the number of students in the sample who watch soap operas.
[1] Assume that we collect a large (n> 30) simple random sample of annual incomes of adults in the United States. Because the sample is large, can we approximate the distribution of these incomes with a normal distribution? Why or why not? Expl..
Using the constant a 5 0.3, ?t an exponentially smoothed curve to the original time series. Repeat part (c) using a 5 0.7. How has the new value for the constant affected the smoothness of the ?tted curve?
Imagine that you have a portfolio of stocks. You want to compare the performance of your stocks to the market as a whole. You learn that the population mean,μ, of stock returns is 7%, and that the population standard deviation, σ, is 2%.
The sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
a researcher concerned about the foreign ownership of the retail trade industry in the u.s. conducts a survey of
Determine the motion of the mass. Decribe its motion in as much detail as possible.
The average shaft size for the E300 electric motor is .55 inch, with a standard deviation of .10 inch. It is normally distributed. What is the probability that a shaft selected at random will be between .55 and .65 inch?
the population of iq scores forms a normal distribution with a mean of micro 100 and a standard deviation of ? 15.
Determine the shortest time spent waiting for a heart that world still place a patient in the top 10% of waiting times? In days?"
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