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A large bakery has many different products for sale. Suppose that 200 customers come in between 6 am and 10 am. Of the 200 customers, 140 order donuts, 100 order cinnamon rolls, and 80 order both.
Suppose a customer is randomly selected:
Make a Venn Diagram to model the situation.
Find P(no donuts and no cinnamon rolls).
What is the probability that this person orders donuts or cinnamon rolls?
If we know a person orders donuts, what is the probability that they order cinnamon rolls?
Make a careful comparison of homicides and suicides, with a bar graph. What do you find about long guns versus handguns?
Coin in a can. A coin of diameter 1 inch is tossed in the air and caught in an empty soup can of bottom radius 3 inches. The coin lies flat on the bottom.
Suppose the statistics community is having a contest to rename regression to something more descriptive of what it actually does. What would you suggest as a name for the entire procedure? As a name for the regression line?
A car dealership has 6red,12silver, and 5black cars on the lot. Ten cars are randomly chosen to be displayed in front of the dealership. Complete parts (a) through (c) below.
For this Assignment, review this week's Learning Resources, including the 5 step approach to hypothesis testing document. Read the research scenario
What does standard deviation measure? In looking at the standard deviations of the "with fireplace" and "without fireplace" selling prices, one is much larger than the other.
What is the test value for this hypothesis test? Test value: Round your answer to three decimal places. What is the critical value? Critical value: Round your answer to three decimal places.
What is the probability of getting two hearts assuming the first one is replaced?
X(t)is a wide sense stationary process with µX = 0 and Y(t) = X(αt) where α is a nonzero constant. Find RY(τ ) in terms of RX (τ ). Is Y(t) wide sense stationary? If so, find the power spectral density SY ( f ).
Assuming that the birth weights are normally distributed, how many weighted between 12 and 24 hectograms?
What is the value of the statistic that you calculate from the data? What is the boundary for the critical region for this test?
An accounting firm carries an advertisement in The Wall Street Journal.- What percentage of the people in the firm's potential market see and remember the advertisement?
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