Question

Question 3Suppose I have a bag with 20 blue candies, 30 red candies, and 10 brown candies,

from which I pick out one candy randomly. The probability of getting a red candy is the same as the probability of getting a blue or brown candy.

True

False

Question 4

Suppose the regression equation for predicting income from age, created based on data from American adults over the age of 40, has a y-intercept of $9,500 and a slope of $225. It would be reasonable to predict the income of a 21 year old college graduate from this regression equation.

True

False

Question 5

Suppose the mean math SAT score of students at Penn State is 610 with a standard deviation of 35, and the histogram roughly follows a normal curve. If I take a random sample of 25 Penn State students, then there is approximately a 95% chance that the mean IQ from this sample is between 596 and 624.

True

False

Question 6

Suppose I am testing the theory that less than 50% of Graduate Students at Penn State are from Pennsylvania. If I let p be the proportion of all Graduate Students at Penn State who are not from Pennsylvania, then the alternative hypothesis for this test is p<0.5.

True

False

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