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A large chain of movie theaters wants to estimate the average number of unoccupied seats per show. To accomplish this, thie tickets sales records of 64 shows were randomly selected and the number of unoccupied seats was calculated. The sample data showed that the mean number of unoccupied seats was 20 with a standard deviation of 10.
Estimate the population mean number of unoccupied seats per show, using 99% confidence interval.
You are designing a poster with area 1225 cm2 to contain a printing area having margins of 5cm at the top and bottom and 8cm on the sides. Find the largest possible printing area
a new light bulb is being considered for use in an office with computers. it is decided that the new bulb will only be
A simple random sample of 30 repairs made by this company is taken. The sample average is $97, and the SD is $17. Assume that the repair cost has a normal curve.
consider a random sample of size n from a bernoulli distribution xi bin1p. for a uniform prior density p unif01 and
Find the probability that the number of hours spent on the computer by the participant is less than 5 hours per week.
suppose a manufacturing company makes a certain item. the time to produce each item is normally distributed around a
Refer to the simple linear regression of number of employees y and age x for fast-growing firms, Exercises 9.21,9.29, and 9.41. The SAS printout of the analysis is reproduced on page 526.
Identify the fallacies of relevance and weak induction committed by the following arguments. If no fallacy is committed, write "no fallacy.
For the following population of N=10 scores 14,6,8,3,9,12,1,6. Draw the histogram showing population distribution. Locate value of population mean in your sketch and make estimate of standard deviation.
When a researcher tests at the ,p=.05,p=.01 or p=.001 levels they can only be used in relationship to evaluate risk to patients in implementing the decisions based on research findings.
Technically, "statistic" refers to which?A sample characteristic A measure of variability
Nine automobiles are sampled to measure gas mileage. The results yield an average of 22.6 miles per gallon with a standard deviation of 1.4 miles per gallon.
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