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To find the number of chicks do we expect that will hatch.
Rhode Island Red Chickens the incubation time for Rhode Island Red chicks is normally distributed with a mean of 21 days and standard deviation of approximately 1 day (based on information from World Book Encyclopedia). Answer the following questions. If 1000 eggs are being incubated, how many chicks do we expect will hatch?
(a) in 19 to 23 days?
(b) in 20 to 22 days?
(c) in 21 days or fewer?
(d) in 18 to 24 days? (Assume all eggs eventually hatch.)
Categorize the following as discrete or continuous random variables.
A regression model between sales (Y in $1,000), unit price (X 1 in dollars) and television advertisement (X 2 in dollars) resulted in the following function: = 7 - 3X1 + 5X 2 For this model SSR = 3500, SSE = 1500, and the sample size is 18...
Use this information to make a 95% confidence interval to evaluate true average number of copies made each day at this company.
Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.
What is the optimal strategy for producing 500 tons of newsprint pulp, 600 tons of packaging pulp, and 300 tons of print stock quality pulp at minimum cost?
Is there a significant difference the four testing conditions?
Calculate expected number of interruptions per day. Calculate standard deviation.
Events A and B are mutually exclusive events defined on common sample space. If P (A) 0.5 and P (A or B) = 0.70, determine P (B).
Compare your best difference to the result from an ordinary two-sample t-test between these groups. Comment the difference.
How many subsets of S contain either the number 6 or the number 15?
where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software.
Explain can you find out statistical support in this poll for that statement. When it comes to the war in Iraq, among which of the subsiquent statements comes closer to your point of view.
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