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1. Given a normal population with m = 125, s = 15 and n = 25, the P(x-bar > 127) = 0.2514.
2. If floodlight life is normally distributed with mean 3500 hours and standard deviation of 200 hours, then the proportion of those lasting longer than 4000 hours is 0.062.
3. It is correct to say that the standard error of the mean is also the standard deviation of a sampling distribution of means.
4. P(-0.5 < Z < -0.3) = 0.0736.
5. For normally distributed I.Q.'s with mean of 100 and standard deviation of 16, the probability that 25 randomly selected individuals have an average I.Q. less than 95 is 0.0594.
what is the probability of tossing a coin 5 times and getting all
question use the values in the joint probability table to solve the equations
Find a 95% confidence interval for the true proportion of registered voters in each political party who checked "Yes" on the Presidential Election Campaign Fund question.
1.a set of ten cards consists of five red cards and five black cards. the cards are shuffled thoroughly and i am given
if 22 tickets are sold and 2 prizes are to be awarded find the probablilty that one person will win two prizes if that
Refer to given Case Study, in which physicians were randomly assigned to take aspirin or a placebo, and heart attack rates were compared. Draw a figure similar to one of Figures that illustrates the steps for Case Study.
a company that produces a particular machine component has 3 factories one each in buffalo detroit and pittsburgh. 27
The cord passing over the two small pegs A and B of the square board is subjected to a tension of 100 N. Determine the required tension P acting on the cord that passes over pegs C and D so that the resultant couple produced by the two couples is ..
The manager accepts 90 bookings. What is the probability that more than 50 clients turn up?
Determining the percentile endpoints. What percentiles of the bootstrap distribution are the endpoints of a 90% bootstrap percentile confidence interval? How do they change for an 80% bootstrap percentile confidence interval?
Using the .10 level of significance, can we conclude there is a significant difference in the proportion of adults and the proportion of teens who rated the new video?
What is the probability that at least two of the three vice presidents can attend the meeting?
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