Calculus and Above

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Find the mean of the sampling distribution of sample means
Find the mean of the sampling distribution of sample means using the given information. Round to one decimal place, if necessary. μ=34 and σ=6; n=25… read more
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Use technology to help you test the claim about the
Use technology to help you test the claim about the population​ mean, μ​, at the given level of​ significance, α​, using the given sample statistics. Assume the population is normally distributed.Clai… 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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In the United States, the mean yearly precipitation in
Second opinion] In the United States, the mean yearly precipitation in Toledo, Ohio is 51 inches. The yearly precipitation is normally distributed and the population standard deviation is 10.84 inches… read more
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9 A population of values has a distribution with μ = 116.2 μ
THIS IS QUESTION #9 A population of values has a distribution with μ = 116.2 μ = 116.2 and σ = 13.4 σ = 13.4 . You intend to draw a random sample of size n = 168 n = 168 .According to the Central Limi… read more
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1. For estimating a population mean with the sample mean
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Chapter 6 00. The average rent in a city is $1,570 per month
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9. What is the minimum sample size you should use to assure
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1. The lengths of human pregnancies are normally distributed
1. The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. What is the probability that a pregnancy lasts at least 300 days? (Points : 6)… read more
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A researcher wishes to estimate, with 95% confidence, the proportion
A researcher wishes to estimate, with 95% confidence, the proportion of adults who have high-speed Internet access. Her estimate must be accurate within the 2% of the true proportion. a. Find the mini… read more
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1. 36 randomly picked people were asked if they rented or owned
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A simple random sample of 10 students is selected from a large
A simple random sample of 10 students is selected from a large college. For the 10 students, the number of days each was absent during the last semester was to be 1, 2, 9, 4, 1, 2, 3, 1, 4, and 4 What… read more
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1. Based on the sample data, a confidence interval has been
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Based on the sample data, a confidence interval has been constructed
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Calculate the standard error. (Round your answers to 4 decimal
Calculate the standard error. (Round your answers to 4 decimal places.) Standard Error (b) n = 50, π = .20 (c) n = 100, π = .10 (d) n = 500, π = .005 Find a confidence interval for μ assuming that eac… read more
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Calculate the standard error. (Round your answers to 4 decimal
Calculate the standard error. (Round your answers to 4 decimal places.) Standard Error (b) n = 50, π = .20 (c) n = 100, π = .10 (d) n = 500, π = .005 Find a confidence interval for μ assuming that eac… read more
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Use the one-mean z_interval procedurce with the sample mean,
Use the one-mean z_interval procedurce with the sample mean, sample size, population standard deviation, and confience level given below to find a confidence intrval for th mean of the population from… read more
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Use the one-mean z-interval procedure with the sample mean,sample
Use the one-mean z-interval procedure with the sample mean,sample size,population standard deviation, and confidence level given below to find aconfidence interval for the mean of the population,μ fro… read more
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