Calculus and Above

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A survey was conducted that asked 1014 people how many books
A survey was conducted that asked 1014 people how many books they had read in the past year. Results indicated that x overbarequals14.5 books and sequals18.9 books. Construct a 95​% confidence interva… read more
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Get an education: The General Social Survey asked 1972
Get an education: The General Social Survey asked 1972 adults how many years of education they had. The sample mean was 13.37 years with a standard deviation of 3.13 years.a.Construct a 98% confidence… read more
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In a random sample of 17 people, the mean commute time to
In a random sample of 17 people, the mean commute time to work was 34.5 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a​ t-distribution to c… read more
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In a survey, 29 people were asked how much they spent on
In a survey, 29 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of \$49 and standard deviation of \$9. Construct a confidence … read more
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In a survey, 12 people were asked how much they spent on
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In a survey, 14 people were asked how much they spent on
In a survey, 14 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of \$33 and standard deviation of \$20. Construct a confidence… read more
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One difficulty in measuring the nesting success of birds is
One difficulty in measuring the nesting success of birds is that the researchers must count the number of eggs in the nest, which is disturbing to the parents. Even though the researcher does not harm… read more
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A survey was conducted that asked 1007 people how many books
A survey was conducted that asked 1007 people how many books they had read in the past year. Results indicated that x overbarequals10.1 books and sequals16.6 books. Construct a 95​% confidence interva… read more
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A survey of 2325 adults in a certain large country aged 18
A survey of 2325 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 423 have donated blood in the past two years. Complete parts​ (a) and​ (b)… read more
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In 2012 the general social survey asked 843 adults how many years of education they had. The sample mean was 7.35 years with a standard deviation of 7.64 years.A. Construct a 98% confidence interval f… read more
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Master's Degree
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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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In a survey of 637637 males ages​ 18-64, 392392 say they
In a survey of 637637 males ages​ 18-64, 392392 say they have gone to the dentist in the past year. Construct​ 90% and​ 95% confidence intervals for the population proportion. Interpret the results an… read more
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A recent Gallup poll asked 1006 Americans, “During the past
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a random sample of four microwave ovens, the mean cost was
a random sample of four microwave ovens, the mean cost was &85.00 and the standard deviation was \$13.50. The 90% confidence interval for the population mean u is (_,_) (round to two decimal places as … read more
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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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Master's Degree
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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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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
Chirag
Master's Degree
10,329 satisfied customers
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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Master's Degree
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