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At one point the average price of regular unleaded gasoline was $3.713.71per gallon. Assume that the standard deviation price per gallon is $0.070.07per gallon and use Chebyshev's inequality to answer the following.
(a) What percentage of gasoline stations had prices within 44 standard deviations of the mean?
(b) What percentage of gasoline stations had prices within 2.52.5 standard deviations of the mean? What are the gasoline prices that are within 2.52.5 standard deviations of the mean?
(c) What is the minimum percentage of gasoline stations that had prices between $3.503.50 and $3.923.92?
Test for a linear trend in reserves and for seasonal effects and what is the value of the intercept for each season (use the 10% signi?cance level)?
a survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. construct the
Satellite Office Systems has vacancies for two executives that it will fill from among four women and six men. What is the probability that exactly one woman is selected?
A person is planning on saving money according to a rigid savings schedule. Saving plan A is to make an initial deposit of $400 and then deposit $20 per month into the account.
q1. a research shows that employee salaries at company xyx in thousands of dollars are given by the equation y-hat 48.5
an investigator is interested in the posibility of merging the capabilities of television and the internet. a random
Discuss how you would investigate the operations of the plant to determine why the proportions were off the targeted values. Speculate on three or more possible conditions in plant and bagging process that could have caused the observed results.
Define exponential function. Give an example of such function and graph it. Discuss what are common characteristics of all exponential functions. (i.e. domain/range/intercepts/asymptotes, general behavior)
Find the probability that in a given winter month fewer than 35 cars will be rented. (use the normal distribution to approximate the binomal distribution).
What is the probability that a randomly selected student has an ACT Math score less than18? What is the probability that a random sample of 10 ACT test takers had a mean ACT Math score less than 18?
the p-value for a one-sided test for a mean was 0.04. the p-value for the corresponding two-sided test would bea 0.02 b
An experiment is conducted to determine the relationship between initial speed and stopping distance of automobiles. A sample of twelve cars is tested and the following data are recorded:
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