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Inheritance of blood types
Children inherit their blood type from their parents, with probabilities that re?ect the parents' genetic makeup. Children of Juan and Maria each have probability 1/4 of having blood type A and inherit independently of each other. Juan and Maria plan to have 4 children; let X be the number who have blood type A.
(a) What are n and p in the binomial distribution of X?
(b) Find the probability of each possible value of X, and draw a probability histogram for this distribution.
(c) Find the mean number of children with type A blood, and mark the location of the mean on your probability histogram.
A run chart is developed that confirms process stability. The level of significance is chosen to be 0.01. (a) Is there evidence to suggest that the process average differs from the target value?
Select a variable. Compare the mean of the variable for a sample of 30 for one group with the mean of the variable for a sample of 30 for a second group. Use a z test.
How many "bars" would be involved if you were supposed to construct a bar graph to represent the frequency distribution of letters? What is the relative frequency of letter I?
In business, investors are always interested in the tradeoff between returns and risk. Regression analysis is a statistical technique that can be used to quantify this risk.
An experiment has four possible outcomes A, B, C, and D. Check whether the following assignments of probability are possible:
You have met an acquaintance for lunch, and he is worried about an upcoming meeting with his boss and some executives from his firm's headquarters. He has to outline the costs and benefits of some alternative investment strategies.
a morgan stanley consumer research survey sampled men and women and asked each whether they preferred to drink plain
How would you use the "margin of error" in estimating the percentage of all adults who think that Venetian blinds are the hardest to clean?
Note that Σ x = 2233 and Σ x 2 = 138,053. At the 5% level of significance, can the instructor conclude that the new mean is different from 64?
question out of forty students there are 14 who are taking physics and 29 who are taking calculus. what is the
The lapping process, which is used to grind certain silicon wafers to the proper thickness, is acceptable only if 'sigma', the population standard deviation of the thickness of dice cut from the wafers, is at most 0.50 mil.
Verify that the acf display a damped sine wave behavior and find the frequence and period of the acf
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