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A study of Math 1530 students on the first day of class asked the question " How many pairs of shoes do you own?"
Here is a small sample of the answers:
3 2 26 17 9 9 25 23 5 47 40 25
Find the mean and standard deviation of the shoe data
The probability that a flower seed will germinate is 0.7. Find the mean and standard deviation for the random variable x, the number of seed that will germinate in each set.
Prepare a 10-13-question survey to gather primary data regarding your selected problem statement. Please note that you will not administer this survey as part of this assignment.
When determining the sample size necessary for estimating the true population mean, which factor is not considered when sampling with replacement
Automobiles arrive at the drive-through window at a post office at the rate of 4 every 10 minutes. The average service time is 2 minutes. the Poisson distribution is appropriate for the arrival rate and service times are exponentially distributed.
shown here are the data for y and three predictors x1 x2 and x3. a multiple regression analysis has been done on these
Her mean waiting time was 7.4 minutes. Assume that the standard deviation has been historically known to be 2.2 minutes. At the .05 significance level, test the claim that the mean waiting time is less than 10 minutes.
Develop a 95% confidence interval for the proportion of the population of adults who feel customer service is better today than it was 2 years ago.
what condition is necessary in order to use z-test to test the difference between two
what method of probability assessment would most likely be used to assess the probability that a customer will return a
the quality control manager at a lightbulb factory needs to determine whether the mean life of a large shipment of
question in a survey conducted by ipsos-reid in august 2009 63 percent of the 1000 canadians surveyed said that they
describe the distribution of sample means shape expected value and standard error for samples of n36 selected from a
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