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Imagine being lost at sea, bobbing around in an orange life jacket. The Coast Guard sends out two kinds of observers to spot you, fellow humans and pigeons. All observers are successful; the search time for each is given in the table in minutes. Decide on a one- or two-tailed test, analyze the data, and write a conclusion.
Fellow humans
Pigeons
45
31
63
24
39
20
Entire commercial airline industry, consider a random sample of 200 flights. What is the expected number that will arrive on time? What is the standard deviation of this distribution.
For this assignment, we are interested in finding out whether participation in a creative writing course results in increased scores of a creativity assessment. For this part of the activity, you will be using the data file "Activity 4a.sav".
the label on 1-gallon cans of paint states that the amount of paint in the can is sufficient to paint 400 square feet.
the wind mountain archaeological site is located in soutwestern new mexico. wind mountain was home to a culture of
Herbicide and corn hybrids. Genetic engineering has produced new corn hybrids that resist the effects of herbicides. This allows more effective control of weeds, because herbicides don't damage the corn.
Assume that the weights of coconuts are normally distributed with a mean weight of 17.6 pounds and a standard deviation of 1.2 pounds.
Given that a respondent is over age 50, what is the probability that he or she gets news primarily from newspapers?
50 people are selected randomly from a certain population and it is found that 13 people in the sample are over 6
at a certain university the average attendance at basketball games has been 3100 spectators per game. due to the dismal
An elevator starts with 7 passengers and stops at 10 floors (not counting the floor they got on). What is the probability that no two passengers leave the elevator on the same floor?
A department store is holding a drawing to give free shopping sprees to two lucky customers. There are 14 customers who have entered the drawing: 4 live in the town of Gaston, 6 live in Pike, and 4 live in Wells.
Statistical analysis Air Pollution and Risk of Asthma in Children
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