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74% of freshman entering public high schools in 2006
74% of freshman entering public high schools in 2006 graduated with their class in 2010. A random sample of 81 freshman is selected. Find the probability that the proportion of students who graduated … read more
R.R. Jha
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Suppose 58% of the doctors in America are dentists. If a
Suppose 58% of the doctors in America are dentists.If a random sample of size 425 is selected, what is the probability that the proportion of doctors who are dentists will be less than 63%? Round your… read more
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R.R. Jha
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Suppose 58% of the doctors in America are dentists. If a
Suppose 58% of the doctors in America are dentists.If a random sample of size 577 is selected, what is the probability that the proportion of doctors who are dentists will be less than 54%? Round your… read more
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R.R. Jha
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A door delivery florist wishes to estimate the proportion of
A door delivery florist wishes to estimate the proportion of people in his city that will purchase his flowers. Suppose the true proportion is 0.07.If 397 are sampled, what is the probability that the… read more
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A courier service company wishes to estimate the proportion
A courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the true proportion is 0.04.If 384 are sampled, what is the probability that… read more
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Suppose the lengths of the pregnancies of a certain animal
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean mu equals 178 days and standard deviation sigma equals 17 days. Complete parts​ (a) through​… read more
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Ge An urn contains 9 black and 6 white. Five are randomly
geAn urn contains 9black and 6white balls. Five balls are randomly drawn from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to the urn. What is the p… read more
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The mean salary offered to students who are graduating from
The mean salary offered to students who are graduating from Coastal State University this year is $ 24,260, with a standard deviation of $ 3643. A random sample of 80Coastal State students graduating … read more
R.R. Jha
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Need help on a homework JA: The Math Tutor can help you get
need help on a homework JA: The Math Tutor can help you get an A on your homework or ace your next test. Tell me more about what you need help with so we can help you best. Customer: statistic JA: Any… read more
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Weight loss for the first month of a diet program varies
1. Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distributio… read more
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Assume that the weight loss for the first month of a diet
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Chirag
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1.) A study of college football games shows that the number
1.) A study of college football games shows that the number of holding penalties assessed has a mean of 2.3 penalties per game and a standard deviation of 0.8 penalties per game. What is the probabili… read more
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(b) What is the standard error of the mean (Round your answer
(b) What is the standard error of the mean? (Round your answer to 2 decimal places.) Standard error of the mean seconds. (c) What percent of the sample means will be greater than 154 seconds? (Round y… read more
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find the qppropriate minimum sample size. you want to be 95%
Please who can get me a fast answer to any of these 16. Solve the problem. The following confidence interval is obtained for a population proportion, p: (0.707, 0.745). Use these confidence interval l… read more
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1) Suppose that the New England Colonials baseball team is
1) Suppose that the New England Colonials baseball team is equally likely to win any particular game as not to win it. Suppose also that we choose a random sample of 30 Colonials games. a) Estimate th… read more
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BIG Corporation advertises that its light bulbs have a mean
BIG Corporation advertises that its light bulbs have a mean lifetime, , of at least hours. Suppose that we have reason to doubt this claim and decide to do a statistical test of the claim. We choose a… read more
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Suppose tht 47% of doctors in America are dentists. If a random
Suppose tht 47% of doctors in America are dentists. If a random sample of size 598 is selected, what is the probability that the proportion of the sampled doctors who are dentist will be less than 52%… read more
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Osbert12
Master's Degree
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The mean salary offered to students who are graduating from
The mean salary offered to students who are graduating from Coastal State University this year is , with a standard deviation of . A random sample of Coastal State students graduating this year has be… read more
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