Calculus and Above

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A random sample of 90 observations produced a mean of
A random sample of 90 observations produced a mean of x¯¯¯=27.7 from a population with a normal distribution and a standard deviation σ=4.98.(a) Find a 90% confidence interval for μ _____≤μ≤ _____ (b)… read more
akch2002
Master's Degree
3,196 satisfied customers
1 point) A random sample of 80 observations produced a mean
1 point) A random sample of 80 observations produced a mean of x⎯⎯⎯=33.7 from a population with a normal distribution and a standard deviation σ=3.75.(a) Find a 90% confidence interval for μ≤μ≤(b) Fin… read more
Sandhya
Master's Degree
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You are given the sample mean and the population standard
You are given the sample mean and the population standard deviation. Use this information to construct the​ 90% and​ 95% confidence intervals for the population mean. Interpret the results and compare… read more
akch2002
Master's Degree
3,196 satisfied customers
For this problem, carry at least four digits after the
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a random sample of 61 professional actors, it was found that 40 were e… read more
GLENN GILONGOS
Master of Mathematics
637 satisfied customers
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
Engineer
Bachelor'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
Engineer
Bachelor's Degree
9,218 satisfied customers
random sample size of 25 from population has mean of 10 and
random sample size of 25 from population has mean of 10 and standard deviation 5. the standard deviation of the sampling distribution of the mean is? for testing the mean, the margin of error of a 90%… read more
Chirag
Master's Degree
10,329 satisfied customers
Please provide assistance with questions below. If
Please provide assistance with questions below. If you wish to estimate a population mean with a sampling distribution error SE=0.21 using a 95% confidence interval and you know from prior sampling th… read more
Stevewh
Teacher
Bachelor's Degree
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Question 10 - A random sample of size n= 20 was drawn from
Question 10 - A random sample of size n= 20 was drawn from a population of size N= 200. The measurements shown in the table below were obtained. 38 24 49 24 29 22 52 25 40 51 26 40 26 38 51 40 48 41 4… read more
Chirag
Master's Degree
10,329 satisfied customers
1) Question 1 (Q3)- a random sample of n=100 observations is
1) Question 1 (Q3)- a random sample of n=100 observations is selected from a population with µ=30 and o=23. Approximate the probabilities shown below. a. P(x̄ ≥28 b. P(22.1≤ x̄ ≤ 26.8) c. P(x̄≤ 28.2) … read more
Trigeoscal
College Math Professor
Master's Degree
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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
Chirag
Master's Degree
10,329 satisfied customers
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
Master's Degree
Master's Degree
33 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
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
Master's Degree
5,795 satisfied customers
A 95% confidence interval of 15.9 months to 50.5 months has
A 95% confidence interval of 15.9 months to 50.5 months has been found for the mean duration of imprisonment,μ, of political prisoners of a certain country with chronic PTSD. a) Detemine the margin of… read more
Scott
Master's Degree
17,134 satisfied customers
Find the mean for the given sample data. Unless indicated otherwise,
Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values. The students in Hugh Logan's math class to… read more
Stevewh
Teacher
Bachelor's Degree
6,427 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
Master's Degree
Master's Degree
102 satisfied customers
1. A population is normally distributed, with a mean of 23.45
A population is normally distributed, with a mean of 23.45 and a standard deviation of 3.8. What is the probability of each of the following: Taking a sample size of ten and obtaining a sample mean of… read more
statwaves
Doctoral Degree
10 satisfied customers
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