Calculus and Above

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1. Which of the following best describes the sampling
1. Which of the following best describes the sampling distribution of a statistic?A distribution of a single statistic from repeated random samples of the same size, from the same population. A normal… read more
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A. In a recent year, the Better Business Bureau settled 75%
A. In a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA Today, March 2, 2009) You have been hired by the Bureau to investigate complaints this year involv… read more
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1. In June 2015, Gallup conducted a poll of a random sample
1. In June 2015, Gallup conducted a poll of a random sample of 14,683 adults to determine the well-being of people living in the United States. One question asked, “Did you exercise at least 30 minute… read more
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A sample of 95 men found that 36 gamble. Another sample of
A sample of 95 men found that 36 gamble. Another sample of 66 women found that 19 gamble. At α-level of 0.01, do the proportion of women gamble less than men? (10 points)a) Based on reading the proble… read more
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Suppose we have a binomial experiment in which success is
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a) Suppose n = 39 and p = 0.30. (For each answer, enter a number. Use 2 de… read more
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Determining the Minimum Sample Size You want to obtain a
Determining the Minimum Sample Size You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 11%. You wou… read more
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Suppose we have a binomial experiment in which success is
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a) Suppose n = 26 and p = 0.33. (For each answer, enter a number. Use 2 de… read more
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Suppose we have a binomial experiment in which success is
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a) Suppose n = 25 and p = 0.39. (For each answer, enter a number. Use 2 de… read more
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Fill in the to correctly complete the sentence below.
Fill in the blanks to correctly complete the sentence below. Suppose a simple random sample of size n is drawn from a large population with mean mu and standard deviation sigma. The sampling distribut… read more
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A random sample of 1015 adults in a certain large country
A random sample of 1015 adults in a certain large country was asked​ "Do you pretty much think televisions are a necessity or a luxury you could do​ without?" Of the 1015 adults​ surveyed, 515 indicat… read more
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A simple random sample of 200 students at a college with
A simple random sample of 200 students at a college with more than​ 10,000 students found that 11 ​didn't attend any of their classes during the most recent semester.On your​ paper, determine if the t… read more
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You want to obtain a sample to estimate a population
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For this problem, carry at least four digits after the
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a random sample of 61 professional actors, it was found that 40 were e… read more
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My question is assume that a population is normally
my question is assume that a population is normally distribute with a mean of 100 and a standard deviation of 15 would it be unusual for the mean of a sample of 3 to 115 or more why why not … read more
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The amount of time employees at a large corporation work
The amount of time employees at a large corporation work each day are normally distributed, with a mean of 7.8 hours and a standard deviation of 0.38 hour. Random samples of 24 and 36 are drawn from t… read more
Ryan
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Hello my question is for Business statistics and it is If the
Hello my question is for Business statistics and it is If the population proportion is .4 with a sample size of 20, then is this sample large enough so that the sampling distribution of it is a normal… read more
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The average weekly earnings of bus drivers in a city are $950
The average weekly earnings of bus drivers in a city are $950 with a standard deviation of $45. Assume that we select a random sample of 81 bus drivers. 1)assume the number of bus drivers in the city … read more
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Explain what a “sampling distribution of sample means” is.
Explain what a “sampling distribution of sample means” is. Be specific! Fill in the blanks in the statements below. The Central Limit Theorem states that as the sample size increases, the distribution… read more
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