Calculus and Above

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A population of values has a mean of .4 and standard
A population of values has a mean of 69.4 and standard deviation of 18.9 and. You intend to draw a random sample of size n = 185 .What is the mean of the distribution of sample means? μ ¯ x =What is t… read more
Sandhya_sharma
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Question 2.2. Which of the following distributions is most
Question 2.2. Which of the following distributions is most likely to approach a normal distribution? (Points : 1) distribution of all possible sample means of sample size 90 distribution of all possib… read more
Ryan
Bachelor's Degree
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This is my Mid-term, and I have to get it finished by
Hello, This is my Mid-term, and I have to get it finished by 2am, are you available? if so, I have copied and pasted it below :). 1. A ________ displays the minimum, first quartile, median, third quar… read more
Ryan
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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
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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
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1. With a sample size of 100 and a p of .5, the sampling distribution
1. With a sample size of 100 and a p of .5, the sampling distribution of the sample proportion will approximate a normal distribution. True False 2. The formula for the test statistic for a one-sample… read more
Stevewh
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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
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1. What is the point estimate of the true proportion of people
1. What is the point estimate of the true proportion of people who wear hearing aids if, in a random sample of 676 people, 35 people had hearing aids? (Points : 6) 0.050 0.052 0.948 0.049 Question 2. … read more
R.R. Jha
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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
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i will also load the screen shot to media fire this one is
i will also load the screen shot to media fire this one is 2 hours cause there are 25 vs 15 questions for the final 1. If Z is a standard normal variable, what is the probability that Z is greater tha… read more
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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
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(A) A sampling distribution is a distribution of all sample
(A) A sampling distribution is a distribution of all sample statistics that describe a particular sample. T-F, and why or why not? (B) A random sample of size 36 is to be selected from a population th… read more
Trigeoscal
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Subject: Quantitative approach to business decision-I need
Subject: Quantitative approach to business decision-I need assistances with 25 questions (multiple choice or true/false). 2.5 hours to complete.… read more
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1. Which of the following is most likely a population as opposed
1. Which of the following is most likely a population as opposed to a sample? (Points : 4) respondents to a newspaper survey the first 5 students completing an assignment every third person to arrive … read more
Trigeoscal
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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
dhouse1940
Master's Degree
Master's Degree
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For a fixed sample size, decreasing the confidence level improves
1) For a fixed sample size,decreasing the confidence level improves the precision of the confidence interval estimate of μ and vice versa. a) Suppose that you want to increase the precision without re… read more
Math-John
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A formal statement that there is an absence of relationship
A formal statement that there is an absence of relationship between variables when tested by a researcher is called: (Points : 1) Null hypothesis Type I error Type II error Negative interval 2. Bivari… read more
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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
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