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Suppose that the diameters of bearings are independently normally distributed random variables with mean=1.005 and variance=(.003)^2. The diameters of shafts are independent normally distributed random variables having mean=.995 and variance=(.004)^2. Let S be the diameter of a shaft taken at random and let B be the diameter of a bearing. a) what is the probability Pr(S>B) of interference? b) What is the probability of one or fewer interferences in 20 random shaft-bearing pairs?
write a null and alternative hypothesis for the following research questionis there a difference in the amount of time
1,500 are involved in the work-study program. Write a 150- to 200-word response for each of the five parts in the question. In each of your responses, provide rationale to support your decisions.
prove the following statements about conditional probabilitiesfor any two events a and b pab1-pnotab. if a and b are
below are the lifetimes in hours of fifty 40-watt 110-volt internally frosted incandescent lamps taken from forced
suppose that a popular hotel for vacationers in orlando florida has a total room of 300 identical rooms. as many major
h-p is said to be the leading seller of pc's in the U.S WITH 27% share of the pc market. if a researcher selects 130 recent pc purchases
Use the normal approximation to the binomial distribution and part (b) to answer the following question: What is the probability that a seat will be available for every person who shows up holding a reservation?
What is a prime number, and why are prime numbers important? What do you call a number that is not prime? What is the largest prime number ever found?
On a test whose distribution is approximately normal with a mean of 50 and a standard deviation of 10, the results for three students were reported as follows:
if a group of 4 were randomly selected from a group of 6 people 3 female3 males what is the probability the selected
q1. for the following questions would the following be considered significant if its probability is less than or equal
using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
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