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A data set consists of 83 observations. How many classes would you recommend for a frequency distribution? Classes _______
68 of these drivers were wearing seat belts. We wish to find if these data give good reason to conclude that more than half of Hispanic female drivers in Boston wear seat belts.
a consumer interest group wishes to compare the effectiveness of three competing brands of medicine. they take a random
Calculate the population mean and population standard deviation.
mitch thinks that there is a difference in quality of life between rural and urban living. he collects information from
the previous analysis of paper boxes showed that the standard deviation of their lengths is 15 millimeters. a packer
A simple random sample of 1000 Americans found that 61% were satisfied with the service provided by the dealer from which they bought their car.
In an experiment, subjects are required to generate a "yes" or "no" decision. The probability of 'Yes' being correct is 50%. The observed probability of yes decisions is 70%.
Provide a descriptive statistic (to 1 decimal) that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.
Suppose we want to conduct a poll to estimate the proportion of voters who approve of the current mayor, and we plan to use a 95% confidence interval for our estimate.
Also how inventory can act as a buffer in the production process. Discuss why it is sometimes prudent not to order the minimum level required to obtain a quantity discount.
the below two question must have a minimum 250 word count and use examples to support the solution. only use usa based
The following sample data were obtained from three populations that did not follow a normal distribution. Compute the value of the test stastic. What is your decision on the null hypothesis?
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