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You want to determine if the number of thunderstorms affects the number of eggs chickens lay. You sample farms in your area and get the following data.
x=Storms
2
1
3
4
y=Eggs
5
Find the equation of the least squares line for this data.
For the storms and eggs data above, find the sample correlation coefficient. Is the correlation positive or negative? Moderate to high, no correlation, or perfect linear correlation?
The standard deviation of the scores is probably close to the value 0.78 for the adult male population. How large an SRS of hotel managers do you need?
As a test the truck company purchases a random sample of metal parts from Steel-R-Us, and then determines if these parts were delivered on-time. Which hypotheses should they test?
The board of directors of Saner Automatic Door Company consists of 12 members, 3 of whom are women.
mimi just started her tennis class three weeks ago. on average she is able to return 15 of her opponents serves. let
While in Paymor Hospital such exams were given in 110 out of 200 cases. In a left-tailed test for equality of proportions, the p-value is?
In checking the quality of the work, she notices that some slight blemishes occasionally are apparent. A sample of 20 pieces of work resulted in the following number of blemishes on each piece:
A sample of 100 widgets from the Acme production line shows that the average lifespan of these parts is 900 hours. The standard deviation of production has been 200 hours historically and is known to be normally distributed.
Why then does it matter whether we assume straight-line or MACRS depreciation when we assess project NPV?
FBI Report Do greater universities tend to have more property crime, would you speek that the correlation is low, moderate or high
Perform an appropriate hypothesis test, showing the necessary calculations and/or explaining the process used to obtain the results.
Based on this, compute a 99% confidence interval for the proportion of all letters mailed in the United States that were delivered the day after they were mailed.
how can you do a regression analysis on excel to predict your sales for the next 5
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