Calculus and Above

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An IQ test is designed so that the mean is 100 and the
An IQ test is designed so that the mean is 100 and the standard deviation is 20 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
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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
Sandhya_sharma
Sandhya_sharma
Master's Degree
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After combining all my IQ scores of 24, I need to use a 0.05
After combining all my IQ scores of 24, I need to use a 0.05 significance level to test the claim that the mean IQ score of twins reared apart is different from the mean IQ of 100 … read more
Math-John
Math-John
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Consider the data in Problem #1. How many subjects would be
Consider the data in Problem #1. How many subjects would be needed to ensure that a 95% confidence interval estimate of BMI had a margin of error not exceeding 2 units?How many subjects would be neede… read more
Ryan
Ryan
Bachelor's Degree
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2. Based on your selected topic, evaluate the following: o
2. Based on your selected topic, evaluate the following: o Find the best point estimate of the population mean. o Construct a 95% confidence interval for the population mean. Assume that your data is … read more
Ryan
Ryan
Bachelor's Degree
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Question 1 Assume that the weight loss first month
Question 1 Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform dis… read more
Ryan
Ryan
Bachelor's Degree
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Chapter 6 00. The average rent in a city is $1,570 per month
Chapter 6 00. The average rent in a city is $1,570 per month with a standard deviation of $200. Assume rent follows the normal distribution. Use the empirical rule to answer the following questions. a… read more
Ashok Kumar
Ashok Kumar
Master's Degree
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1. A random sample of 92 observers produced a mean X = 25.8
1. A random sample of 92 observers produced a mean X = 25.8 and a standard deviation s = 2.6. a) Find a 95% confidence interval for 11. b) Find the 90% confidence interval for Jl c) Find the 99% confi… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
1. In a week before and the week after a holiday, there were
1. In a week before and the week after a holiday, there were 10,000 total deaths, and 4952 of them occurred in the week before the holiday. a. Construct a 95% confidence interval estimate of the propo… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
Hello Ryan, I need assistance on another project also. I
Hello Ryan, I need assistance on another project also. I will not need it until tomorrow. Will you be on then or do I need to submit it now?… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
1. A simple random sample of 64 items produces a sample mean
1. A simple random sample of 64 items produces a sample mean of 85. The population standard deviation is σ = 8. At 95% confidence, what is the margin of error (round to 2 decimals)? 2. A simple random… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
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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
Chirag
Chirag
Master's Degree
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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
dhouse1940
dhouse1940
Master's Degree
Master's Degree
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A worker randomly selects 16 packages from the mail. The sample
A worker randomly selects 16 packages from the mail. The sample has a mean weight of 13.5 lbs and a population standard deviation of 3.21 lbs. The weights of all packages are normally distributed. a. … read more
Sandhya_sharma
Sandhya_sharma
Master's Degree
3,323 satisfied customers
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
Stevewh
Stevewh
Teacher
Bachelor's Degree
6,427 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
Sandhya_sharma
Sandhya_sharma
Master's Degree
3,323 satisfied customers
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
Chirag
Master's Degree
10,329 satisfied customers
1.Assume that the weight loss for the first month of a diet
1.Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
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