Pre-Calculus

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In a survey of 2001 people, 52% did not give another person
In a survey of 2001 people, 52% did not give another person a hug because they are an introvert. Test that claim ( majority of people did not give a hug because there are an introvert)some steps… read more
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2 questions Suppose a university advertises that its average
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2 questions Consider the following hypotheses. H0​: p≤0.18
2 questions Consider the following hypotheses. H0​: p≤0.18 H1​: p>0.18 Given that p=0.2​, n=130​, and α=0.01​, answer the following questions. a. What conclusion should be​ drawn? b. Determine the​… read more
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Not all visitors to a certain company's website are
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A TV executive is interested in the popularity of a
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A Food Marketing Institute found that 34% of households
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Suppose x has a distribution with a mean of 80 and a
Suppose x has a distribution with a mean of 80 and a standard deviation of 9. Random samples of size n = 36 are drawn. (a) Describe the x bar distribution. x bar has a normal distribution. x bar has a… read more
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The director of research and development is testing a new
The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.05 level that the drug stays in the system for less than 378 minutes. For a sample of 90… read more
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The director of research and development is testing a new
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COLLEGE STATISTICS PROBLEM A community college Math
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You're an accounting manager. A year-end audit showed 4% of
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Research subjects were followed from adolescence to
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Consider a t distribution with 6 degrees of freedom. Compute
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The Fox TV network is considering replacing one of its
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Find the solution of the exponential equation, as in
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Question 1 Assume that the weight loss first month
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A cooler at a picnic contains 100 cans of soda covered by ice.
A cooler at a picnic contains 100 cans of soda covered by ice. There are 28 cans of cola, 46 cans of orange soda, 14 cans of ginger ale, and 12 cans of root beer. The cans are all the same size and sh… read more
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What is the mean annual snowfall during 49 randomly picked years?
Solve the problem. The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 94 inches, and a standard deviation of 14 inches. What is the probability that the … read more
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