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David stands on a street corner tossing a coin. He decides he will toss the coin 10 times, each time walking 1 block north if it lands headsup, and 1 block south if it lands tails up. Find the probability that he ends up 10 blocks north of his original corner.
Which relationship is stronger, the relationship between GPA and AGE or the relationship between GPA and SAT score? Be sure to include all appropriate measures and explain and defend your answer. Is this result what you would expect, why or why no..
Printed circuit cards are placed in a functional test after being populated with semiconductor chips. A lot contains 140 cards, and 20 are selected without replacement for functional testing.
I have two contingency tables. One has a chi-square value of 14.40 and the other is 27.86. Both have 6 degrees of freedom. Based on an alpha of .01 do you reject the null hypothesis?
What is the Spearman coefficient of rank correlation, what range of values can it have, and how is its numerical value interpreted? Two travel editors have each ranked 10 popular vacation spots according to the value they represent for the money..
there is a 25 chance that a fuse of a certain type is defective. approximate the probability of having more than or
seventy percent of houshold say the would feel secure if they had 50000 in saving. you randomly select 8 houshold and
A researcher predicts that watching a film on institutionalization will change students' attitudes about chronically mentally ill patients.
Calculate the test statistic. Determine the p-value of the test-statistic.
in a large lecture class the professor announced that the scores on a recent exam were normally distributed with a
suppose that 30 of a group of people have hazel eyes. assume that passengers boarding the plane form a randomly chosen
If the airline books 76 people on a flight for which the maximum number is 74, what is the probability that the number of people who show up will exceed the capacity of the plane?
give an example of how you may use a correlation or simple regression to examine the relationship between two variables
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