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Statistics and probability
The relationship between the number of games won by an NHL team and the average attendance at their home games is analysed. A regression analysis to predict the average attendance from the number of games won gives the model attendance = -2,600 + 225 wins. One team averaged 14,865 fans at each game and won 49 times. Calculate the residual for this team.
A group of sheep, infested with tapeworms, are randomly divided into two groups as follows. Each sheep is assigned a number (1 through 20) and then 10 numbers are selected by drawing 10 slips of paper from a box having the numbers 1 through 20 writte..
Customers arrive at the checkout counter of a supermarket at an average rate of 10 per hour, and these arrivals follow a Poisson distribution.
The value of the test statistic does not lie in the rejection region. Therefore, we accept the null hypothesis.
Results are comparable to what could be expected in human serum. Are true binding percentages for five antibiotics tested all equal? Let α = 0.05.
Does the plot show a positive association, a negative association, or no association between the two variables? Explain.
A random sample of 26 local sociology graduates scored an average of 458 on the GRE advanced sociology test, with a standard deviation of 20.
a golf course architect has five linden trees three white birch trees and three bald cypress trees to plant in a row
Major hirings in retail in Britain are as follows: 9,000 at Safeway; 5,000 at Boots;.- What is the probability that a randomly selected new hire from these was hired by Marks and Spencer?
Compute the Pearson correlation. Multiply each X value by 2 and compute the Pearson correlation for the modified scores.
How could the number of people who do not know who Martha Stewart is increase from June to July? Did people forget her? Or is the poll perhaps flawed? Explain how these results could be valid.
gigi and ron are candidates for mayor in a city. you want to estimate the proportion of gigis voters with 90 confidence
a researcher reports the following equation for a best-fitting straight line to a set of data points ycirc?1.01x3.24.
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