Calculus and Above

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Anita's, a fast-food chain specializing in hot dogs and
Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant (as opposed to ordering the food "to go") so it… read more
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At a recent meeting at the American College of Asthma,
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Suppose that we've decided to test Clara, who works at the
Suppose that we've decided to test Clara, who works at the Psychic Center, to see if she really has psychic abilities. While talking to her on the phone, we'll thoroughly shuffle a standard deck of 52… read more
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According to a survey in a​ country, 17​% of adults do not
According to a survey in a​ country, 17​% of adults do not own a credit card. Suppose a simple random sample of 400 adults is obtained. Complete parts​ (a) through​ (d) below.​(a) Describe the sampling distribution of ModifyingAbove p with caret​, the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of ModifyingAbove p with caret below. A. Not normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis greater than or equals 10 B. Approximately normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis greater than or equals 10 C. Not normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis less than 10 D. Approximately normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis less than 10 Determine the mean of the sampling distribution of ModifyingAbove p with caret. mu Subscript ModifyingAbove p with caret Baseline equals nothing ​(Round to two decimal places as​ needed.) Determine the standard deviation of the sampling distribution of ModifyingAbove p with caret. sigma Subscript ModifyingAbove p with caretequals nothing ​(Round to three decimal places as​ needed.)​(b) What is the probability that in a random sample of 400 ​adults, more than 21​% do not own a credit​ card? The probability is nothing.​(Round to four decimal places as​ needed.) Interpret this probability. If 100 different random samples of 400 adults were​ obtained, one would expect nothing to result in more than 21​% not owning a credit card.​(Round to the nearest integer as​ needed.)​(c) What is the probability that in a random sample of 400 ​adults, between 16​% and 21​% do not own a credit​ card? The probability is nothing.​(Round to four decimal places as​ needed.) Interpret this probability. If 100 different random samples of 400 adults were​ obtained, one would expect nothing to result in between 16​% and 21​% not owning a credit card.​(Round to the nearest integer as​ needed.)​(d) Would it be unusual for a random sample of 400 adults to result in 64 or fewer who do not own a credit​ card? Why? Select the correct choice below and fill in the answer box to complete your choice.​(Round to four decimal places as​ needed.) A. The result is not unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is greater than​ 5%. B. The result is unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is greater than​ 5%. C. The result is not unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is less than​ 5%. D. The result is unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is less than​ 5%. … read more
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Anita's, a fast-food chain specializing in hot dogs and
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The workers' union at a certain university is quite strong.
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Suppose that we've decided to test Clara, who works at the
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Do you wear gloves to shop or fill your car with petrol
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3. A fast food restaurant estimates that the mean sodium
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This is my questionThe goal is to estimate the proportion of
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According to a report by the US Fish and Wildlife Service,
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The claim is that the proportion of peas with yellow pods is
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1.)The claim is the proportion of peas with yellow pods is
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1.)Based on a study of heights of men and women wh play basketball,
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Let p be the population proportion for the following condition.
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1. The National Student Loan Survey collects data to examine
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16. In a survey of 630 males ages 18-64, 391 say they have
16. In a survey of 630 males ages 18-64, 391 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and com… read more
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"StatsPro" next group for my test 11. Which of the following
"StatsPro" next group for my test 11. Which of the following statements are true? (Check one) I. A sample survey is an example of an experimental study. II. An observational study requires fewer resou… read more
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