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Compare the following cities for annual temperature.
See if there is a difference in their means and variances.
(Run a hypothesis test.)
a) Miami vs Los Angeles
b) Paris vs New York
c) Any other two cities of your choosing.
Graph the distribution using a histogram. Calculate the mean and standard deviation.
The height and diameter of 31 trees of a certain species were measured, the trees were cut down, and the volume of usable lumber was determined. Find the explanatory variable(s) in this study are
Make a scatter plot, illustrate the regression lines. Determine the correlation coefficient between husband’s and wife’s education for couples in which wife is employed full time?
A journal polled its readers to determine the proportion of wives who, if given a second chance, would marry their husband again.
At the 0.05 significance level, can he conclude that number of absences has declined? calculate approximately the p -value.
Find out z values for 29 and 34 hours. What percent of garages take between 32 hours and 34 hours to erect?
At a large department store, the amount a shopper spent and the shopper's gender (male or female) were recorded. To determine if gender is useful in explaining the amount of money a shopper spends at the store we could
Let X be the number of yes votes obtained from a random sample of 200 out of the entire voting population. What is the expected value of X if, in fact, 65% of all voters supported the dictator?
In which of the following situations is bootstrapping (and other resampling methods) often used and Which of the following is a valid description of the bootstrapping method.
Part 1. What is the appropriate distribution for such data? Part 2. Is this lot anomalous?
The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution.
When using past data, I have found that the proportion of items rejected by quality control personnel is about 3%. We normally make 5000 items per day. For a p chart, what are the upper and lower control limits?
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