A plan for an executive traveler's club has been developed by an airline on the premise that at least 5% of its current customer
s would qualify for membership. A random sample of 500 customers yielded 40 who would qualify. Using this proportion data, test at alpha = .01 the null hypothesis that the company's premise is correct, against the alternative that it is higher than the premise. 1. What is the standard error for this hypothesis test?Use four decimal places in your answer and use the proper rules of rounding. 2. What is the critical value for this test?Use four decimal places in your answer and use the proper rules of rounding.
1 answer:
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Answer:
Chris will take 0.75 seconds to return to his starting height of 10 feet.
Step-by-step explanation:
Let the height of Chris be represented by , where
is the height in feet and
, the time in seconds. First, we equalize the formula to a height of 10 feet and simplify the resulting expression, that is:
Then, we simplify the expression by algebraic means:
Roots of the polynomial are, respectively:
First root represents the initial height of Chris, whereas the second one represents the instant when Christ returns to the same height above the surface of the water. Hence, Chris will take 0.75 seconds to return to his starting height of 10 feet.