Calculus and Above

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Confidence interval proportion (a) A newspaper wants to
Confidence interval proportion (a) A newspaper wants to estimate the proportion of the residents of Indianapolis who approve of the governor of Indiana. They survey 124 randomly chosen residents, and … read more
MunishK
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I need help with this problem You want to obtain a sample to
I need help with this problem You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 55.4 σ = 55.4 . … read more
rajeevanpillai
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1.The following distribution list displays the number of​
1.The following distribution list displays the number of​ no-shows for a particular flight and the historical probability that each number of​ no-shows will occur. A​ no-show is a person who has a res… read more
Scott
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4. In June 2005, a CBS News/NY Times poll asked a random
4. In June 2005, a CBS News/NY Times poll asked a random sample of 1,111 U.S. adults the following question: "What do you think is the most important problem facing this country today?" Roughly 19% of… read more
R.R. Jha
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Need these answers within the hour, I appreciate your help!Questions 1: An investigator claims, with 95 percent confidence, that the interval between 10 and 16 miles includes the mean commute distance… read more
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Educator
Master's Degree
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The Gallup organization conducted a phone survey from June
The Gallup organization conducted a phone survey from June 9-12, 2011. Researchers at Gallup chose a random sample of 961 American adults. The 1020 American adults were asked to respond to the followi… read more
DebdattaBhattacharya
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Which has a greater probability of sampling error: an N of
Which has a greater probability of sampling error: an N of 10 or an N of 100? … read more
Neo
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A sociologist wants to construct a 99.8% confidence interval
A sociologist wants to construct a 99.8% confidence interval for the proportion of children aged 8-10 living in New York who own a cell phone. Part 1. (a) A survey by the national consumers league tak… read more
Kofi
PhD in Statistics
Ph.D.
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Choose a number between 600 and 1600 If we surveyed that
Choose a number between 600 and 1600 If we surveyed that many people at the 95% confidence level then what would the margin of error but remember to take both the answer and your number… read more
Keith Pelletier
Master's Degree
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Results of a poll of a random sample of 3003 American adults
Results of a poll of a random sample of 3003 American adults showed that 20% do not know that caffeine contributes to dehydration. The poll was conducted for the Nutrition Information Center and had a… read more
Keith Pelletier
Master's Degree
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3. A research institute polled asked repondents if they acted
3. A research institute polled asked repondents if they acted to annoy a bad driver. In the poll n=2410 and x=1020 who said that they honked. Use 95% confidence level. a. find the best point estimate … read more
Stevewh
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A survey on the drinking habits of Americans estimated the
A survey on the drinking habits of Americans estimated the percentage of adults across the country who drink beer, wine, or hard liquor at least occasionally. Of the 1516 adults interviewed, 985 said … read more
Chirag
Master's Degree
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1. Suppose we want to design a new placebo-controlled trial
1. Suppose we want to design a new placebo-controlled trial to evaluate an experimental medication to increase lung capacity. The primary outcome is peak expiratory flow rate, a continuous variable me… read more
Chirag
Master's Degree
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Hello, I have an 11 question quiz for PSYC 258: Behavioral
Hello, I have an 11 question quiz for PSYC 258: Behavioral SCIENCE STATISTICS that I need complete in under 40 minutes! Please complete! Question 1 An investigator claims, with 95 percent confidence, … read more
Math-John
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1. 36 randomly picked people were asked if they rented or owned
1. 36 randomly picked people were asked if they rented or owned their own home, 10 said they rented. What is the point estimate of the true proportion of home owners? (Points : 6) 0.722 0.217 0.278 0.… read more
Martin
Master's Degree
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1. Assume you need to build a confidence interval for a population
1. Assume you need to build a confidence interval for a population mean within some given situation. Naturally, you must determine whether you should use either the t-distribution or the z-distributio… read more
Math-John
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Problem Set 5 1) Complete exercise 7.11, 7.15, 7.27 (parts
Problem Set 5 1) Complete exercise 7.11, 7.15, 7.27 (parts a and c only), 7.11 A simple random sample of n = 300 full-time employees is selected from a company list containing the names of all N = 5,0… read more
Ryan
Engineer
Bachelor's Degree
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Hi Sandhya! Its me again, do you think you could help me
Hi Sandhya! It's me again, do you think you could help me with this homework? Deadline is 7 hours from now. Really need help! QUESTION 1 Before launching a new online service, a bank is interested in … read more
Sandhya_sharma
Master's Degree
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