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Arrows. An Olympic archer is able to hit the bull s-eye 80% of the time. Assume each shot is independent of the others. If she shoots 6 arrows, what's the probability of each of the following results?
a) Her first bull s-eye comes on the third arrow.
b) She misses the bull s-eye at least once.
c) Her first bull s-eye comes on the fourth or fifth arrow.
d) She gets exactly 4 bull s-eyes.
e) She gets at least 4 bull s-eyes.
f) She gets at most 4 bull s-eyes.
Explain why an Analysis of Variance is appropriate for these data. Create appropriate graphical summaries of the data. Use these summaries to Draw preliminary conclusions about the data - justify your conclusions.
Company W is testing a sales software. Their salesforce of 500 people is divided into four regions: Northeast, Southeast, Central and West. Each sales person is expected to sell the same amount of products.
Conduct a test for equality of average return using a = 0.05, and construct a 95% confidence interval for the difference in average return in the global.
a gallup poll used telephone interviews to survey a sample of 1025 u.s. residents over the age of 18 regarding their
assume the readings on thermometers are normally distributed with a mean of 0 degrees celsius and a standard deviation
What are examples in which regression analysis is used for forecasting? What are some primary and secondary sources of data that may be used in correlation and regression analysis?
Is there evidence at the 0.025 level that the doors are too short and unusable?
Show the experimental design and the response variable for the corresponding experiments. Determine the main effects. Plot the average response curves. What are the optimal settings of the design parameters?
Make a scatterplot of earnings and driving distance. Use earnings as the response variable. Describe the direction, form, and strength of the relationship.
Comment on any problems you see with the use of the mean and standard deviation as summary statistics.- How well do you think the Normal model will work on these data? Explain.
Review the financial information and statistics provided at the following link: https://finance.yahoo.com/quote/BBY?p=BBY and answer the following:
aslin finch would like to determine the effect of shelf space on the sales of pet food. a random sample of 15 stores is
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