Calculus and Above

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Construct a​ 99% confidence interval to estimate the
Construct a​ 99% confidence interval to estimate the population mean using the data below. x=23 s=4.5 n=20 N=180 The​ 99% confidence interval for the population mean is ,. ​(Round to two decimal place… read more
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A doctor wants to estimate the mean HDL cholesterol of all
A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence assuming s=… read more
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11. A human resource manager for a large company takes a
11. A human resource manager for a large company takes a random sample of 60 employees from the company database. Based on the sample she calculates a 95% confidence interval for the mean time of empl… read more
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A doctor wants to estimate the mean HDL cholesterol of all​
A doctor wants to estimate the mean HDL cholesterol of all​ 20- to​ 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 4 points with 99 % confidence assuming… read more
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A doctor wants to estimate the mean HDL cholesterol of all​
A doctor wants to estimate the mean HDL cholesterol of all​ 20- to​ 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 44 points with 99 %99% confidence assu… read more
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A doctor wants to estimate the mean HDL cholesterol of all
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Corn: In a prior sample of corn, farmer finds that 12% of
Corn: In a prior sample of corn, farmer Carl finds that 12% of the sample has worms but the margin of error for his population estimate was too large. He wants an estimate that is in error by no more … read more
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A doctor wants to estimate the mean HDL cholesterol of all​
A doctor wants to estimate the mean HDL cholesterol of all​ 20- to​ 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 3 points with 99 % confidence assuming… read more
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A doctor wants to estimate the HDL cholesterol of all​ 20-
A doctor wants to estimate the HDL cholesterol of all​ 20- to​ 29-year-old females. How many subjects are needed to estimate the HDL cholesterol within 3 points with 99 % confidence assuming sigma equ… read more
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A doctor wants to estimate the HDL cholesterol of all​ 20-
A doctor wants to estimate the HDL cholesterol of all​ 20- to​ 29-year-old females. How many subjects are needed to estimate the HDL cholesterol within 22 points with 99 %99% confidence assuming sigma… read more
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A doctor wants to estimate the HDL cholesterol of all 20-29
A doctor wants to estimate the HDL cholesterol of all 20-29 year old females. How many subjects are needed to estimate the HDL cholesterol within 2 points with ((% confidence assuming sigma is 18.2? S… read more
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The population mean annual salary for environmental
The population mean annual salary for environmental compliance specialists is about ​$66 comma 00066,000. A random sample of 4040 specialists is drawn from this population. What is the probability tha… read more
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In a survey of 2898 adults, 1417 say they have started paying
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Let p be the population proportion for the following condition.
Let p be the population proportion for the following condition. Find the point estimates for p and q. In a survey of 1543 adults from country A, 641 said that they were not confident that the food the… read more
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Please help with these 17 questions!! 1. Find the margin of
Please help with these 17 questions!! 1. Find the margin of error for the given values of c,s,and n. c=0.90,s=2.9,n=100 2. Construct the confidence interval for the population mean u. c=0.98,x=8.4,s=0… read more
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Find the margin of error for the given values of c, s, and
Find the margin of error for the given values of c, s, and n. C=0.95, s=2.3, n=49 E=_________ (Round to three decimal places as needed) Construct the confidence interval for the population mean µ. C= … read more
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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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Find the margin of error for the given values of c, s, and
Find the margin of error for the given values of c, s, and n. C=0.90, s=3.9, n=49 E=_________ (Round to three decimal places as needed) Construct the confidence interval for the population mean µ. C= … read more
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