Calculus and Above

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Suppose x has a distribution with μ = 18 and σ = 17. (a) If
Suppose x has a distribution with μ = 18 and σ = 17. (a) If a random sample of size n = 34 is drawn, find μx, σ x and P(18 ≤ x ≤ 20). (Round σx to two decimal places and the probability to four decima… read more
Sandhya_sharma
Sandhya_sharma
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Consider a binomial experiment with n = 10 and p = 0.40. (a)
Consider a binomial experiment with n = 10 and p = 0.40. (a) Compute f(0). (Round your answer to four decimal places.) f(0) = (b) Compute f(2). (Round your answer to four decimal places.) f(2) = (c) C… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
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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
GLENN GILONGOS
Master of Mathematics
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1. Find the indicated z score. The graph depicts the
1. Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. The indicated z score is? (Round to two decimal places as needed.) 2. Assume tha… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
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1. For estimating a population mean with the sample mean
1. For estimating a population mean with the sample mean find (i) the standard error of and (ii) the 100 (1-0x) error margin. Round answers to three decimal places. S.E. 98% error margin is 2. For est… 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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in a small community the proportion of people who choose jogging
in a small community the proportion of people who choose jogging as a recreational activity equals p = 0.3. The random variable X indicates whether a person jogs or not: X = 1 if yes; X = 0 otherwise.… read more
Chirag
Chirag
Master's Degree
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"For Guru2009 only" 1. A random sample of fifty-five 200-meter
"For Guru2009 only" 1. A random sample of fifty-five 200-meter swims has a mean time of 3.98 minutes and a standard deviation of 0.06 minutes. Construct a 905 confidence interval for the population me… read more
Chirag
Chirag
Master's Degree
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The amount of time employees at a large corporation work
The amount of time employees at a large corporation work each day are normally distributed, with a mean of 7.8 hours and a standard deviation of 0.38 hour. Random samples of 24 and 36 are drawn from t… read more
Ryan
Ryan
Bachelor's Degree
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Where applicable, round your answers to three decimal places
Where applicable, round your answers to three decimal places, e.g. 0.123. 1. Refer to Example 3.3. From the histogram of the marks, estimate the following probabilities. a. P(55 < X 65) c. P(X <… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
PAGE 1 1 Population assumption: Normal n = 16; x = 96; s
PAGE 1 1 Population assumption: Normal n = 16; x = 96; s = 13; H0: μ ≤ 84, H1: μ > 84; α = 0.01 State the conclusion: _________________ 2 A simple random sample of 10 students is selected from a la… read more
Ryan
Ryan
Bachelor's Degree
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A simple random sample of 10 students is selected from a large
A simple random sample of 10 students is selected from a large college. For the 10 students, the number of days each was absent during the last semester was to be 1, 2, 9, 4, 1, 2, 3, 1, 4, and 4 What… read more
Ryan
Ryan
Bachelor's Degree
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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
Trigeoscal
College Math Professor
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
Chirag
Chirag
Master's Degree
10,329 satisfied customers
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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Use the following weights in pounds of a sample of high school
Use the following weights in pounds of a sample of high school football players to answer 1-20 below. X = {181, 206, 168, 163, 162, 184, 253, 162, 166, 165, 168, 150, 195, 200, 225, 166, 174, 166, 186… read more
Sandhya_sharma
Sandhya_sharma
Master's Degree
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A simple random sample of size n= 11 is drawn from a population
A simple random sample of size n= 11 is drawn from a population that is normally distributed. The sample mean, x, is found to be 109, and the sample standard devation, s, is found to be 10. Construct … read more
Math-John
Math-John
30 satisfied customers
Use the one-mean z-interval procedure with the sample mean,sample
Use the one-mean z-interval procedure with the sample mean,sample size,population standard deviation, and confidence level given below to find aconfidence interval for the mean of the population,μ fro… read more
Sandhya_sharma
Sandhya_sharma
Master's Degree
3,904 satisfied customers
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