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Production records indicate that 1.5% of the light bulbs produced in a facility are defective. a random sample of 22 light bulbs was selected.
a) Use the binomial distribution to determine the probability that 2 defective bulbs are found.
b) Use the poisson approximation to the binomial distribution to determine the probability that 2 defective bulbs are found.
c) How do these two probabilities compare?
It is asserted that a greater proportion of males (= x 1 ) contribute to charity than females (= x 2 ). A survey of male and female contributors to charity showed that of 900 males surveyed
question a random sample of five accidents resulted in the following number of persons injured 18 1512 19 amp 21.
he probability that a pumpkin seed will germinate is 70%. A gardener plants the pumpkins in batches of 12. What is the mean of the distribution? What is the variance of the distribution?
Formulate a linear programming model that can be used to determine the number of units each model that should be produced in order to maximize the total contribution to profit
The researcher expects a 12-point treatment effect and plans to use a two-tailed hypothesis test with a = 0.05.
a metropolitan school system consists of three school districts-norths south central. the north district contains 25 of
a survey of adults ages 18-29 found that 82 use the internet. you randomly select 196 adults ages 18-29 and ask them if
To interpret, there were 50 days on which no credit applications were received, 77 days on which only one application was received, and so on. Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0. Use the ..
Bbut only 1 percent of those closed will have something stolen. If a garage is robbed, what is the probability the doors were left open?
A newspaper conducted a statewide survey concerning a proposal to raise taxes to prevent budget cuts to education. The newspaper took a random sample (assume it is an SRS) of 1200 registered voters and found that 580 would vote to raise taxes. Let..
Generate a 95% confidence interval for the difference in mean HDL levels between men when exercise regularly and those who do not.
q1. the ziteck corporation buys parts from international suppliers. one part is currently being purchased from a
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