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Height in inches
69
67
71
70
72
Weight in lbs
164
161
189
192
184
198
a) Find the equation of the regression line with height as the explanatory variable and use the regression line to find the predicted values for x=68 inches and x=72 inches.
What is the difference between a parameter and a statistic? Describe an example. Finally, there are "adjustments" that statisticians
What is the probability that X falls below 0.5 and Find the median of this density curve.
Airlines sometimes overbook flights. Suppose that for a plane with 100 seats, an airline takes 110 reservations. Define the variablexas the number of people who actually show up for a sold-out flight. From past experience, the probability distribu..
A set of data is normally distributed with a mean of 3.5 and a standard deviation of 0.6. State whether the first area is bigger, the second area is bigger.
List the simple events in the sample space.- What is the probability that she was born on a weekend (Saturday or Sunday)?
The 45-65 group, and 12% for the group over 65. Find the rejection region to test the claim that all ages have crash rates proportional to their driving rates.
Responses to stress are governed by the hypothalamus. Imagine you have two groups of participants.- Determine whether the groups differ based on Welch's test.
Quality control. Sammy's Salsa, a small local company, produces 20 cases of salsa a day. Each case contains 12 jars and is imprinted with a code.
Withdrawals of $400 for 3 years. Find the balance of her account just after the last withdrawal (on february 1,2001)if the monthly interest rate is 6%.
Considering this probability, comment on whether Grove Tree Mountain might not be a typical hospital in terms of its patients' likelihood of picking up an infection.
Suppose a coin has been shaved so that the probability of tossing a head is 0.40. This coin is flipped four times.
Find the pdf of X+Y - Two independent uniform random variables
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