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The lifetime of certain light bulbs has a mean of 2050 hours and a standard deviation of 405 hours. If you randomly selected 40 light bulbs, find the probability that their average lifetime is within 330 hours of the mean.
If an original set of measurements is made in inches and has mean of 36 and variance of 144, what will be the mean, variance, and standard deviation if:
1. at a certain high school a random sample of 50 student are chosen for a free 10-week sat prep class they are given a
If the average price of a new home is 145,000 what is the minimum and maximum prices of the houses a contractor will need to build to include the middle 80% of the market.
A data set comprises of set of numerical values. Which, if any, of the following statements could be right? Point to whether given statement could apply to data set consisting of 1,000 values which are all different.
Recognize sample, population, sample statistic, and population parameter: Nasonex is the drug used to treat allergy symptoms.
find the z-score corresponding to a score of x 100 for each of the following distributionsa. micro 80 and s 10b.
Over a 20 year period, the average grade point average of applicants to our graduate program has been found to be 3.27. This year the mean grade point average of the 57 students applying to our graduate program is 3.53
Find the probability that when 200 reservations are accepted, there are more passengers showing up than there are seats available. Is the probability of overbooking small enough so that it does no happen very often.
a certain office building infrequently experiences power outages. it is known that the probability of a power outage on
when one experiences a lack of control in ones life does one compensate by seeking structure elsewhere? assign 36
Accounting procedures allow a business to evaluate their inventory at LIFO (Last In First Out) or FIFO (First In First Out). A manufacturer evaluated its finished goods inventory (in $ thousands) for five products both ways.
Based on past data, the Student Recreation Center knew that the proportion of students who prefer exercising outside over exercising in a gym was 0.734. To update their records, the SRC conducted a survey. Out of 95 students surveyed, 76 indicated..
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