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The marketing director of a large department store wants to estimate the average number of customers who enter the store every five minutes. She randomly selects five-minute intervals and counts the number of arrivals at the store. She obtains the figures 58,32,41,47,56,80,45,29,32, and 78.The analyst assumes the number of arrivals is normally distributed. Using these data, the analyst computes a 95% confidence interval to estimate the mean value for all five-minute intervals. What interval values does she get?
Perform a correlational analysis on the following variables: Student Extroversion, Lecture Extroversion, Student Agreeableness, Lecture Agreeableness.
what are the four states of the decision environment? discuss which management science techniques could be useful for
A random sample of 60 days shows that the mean daily number of gallons sold is 10.00. What is the point estimate of the population mean?
When determining the sample size necessary for estimating the true population mean, which factor is not considered when sampling with replacement?
The researcher found that Abraham Lincoln's educational score did not correlate highly with the expected variable. What is wrong?
A simple random sample of pages from Merriam-Websters Collegiate Dictionary is obtained. Listed below are the numbers of words defined on those pages
A processor of carrots cuts green top off each carrot, washes the carrots, and inserts six to a package. Twenty packages are inserted in a box for shipment. To test weight of the boxes, a few were checked.
determine the mean and variance of the random variable.fx 64 21 14x x 123round your answers to three decimal
during a 36 year period lighting killed 3239 people in the us. assume that the rate holds true today and is constant
A stock price is currently $100. Over each of the next two three-month periods it is expected to increase by 10% or fall by 10%. Consider a six-month European call option with a strike price of $105.
Perform a significant test to assess whether there is an association between mortality from cirrhosis of the liver and duration of employment in the group hired after 1945. Report a p-value.
The running time for videos is normally distributed with mean 390 and standard deviation 148. suppose a sample of 40 videos are selected, what is the probability that the mean running time of the sample exceeds 360 seconds?
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