The __________ is the standard deviation of the estimated value of the mean of the actual...
The __________ is the standard deviation of the estimated value of the mean of the actual distribution around its true value; that is, it is the standard deviation of the average return.
a. Standard return
b. Standard error
c. Estimate error
d. Standard Predict error
Homework Answers
Correct Ans
a. Standard return
Standard return is aprox std dev of a certain sample population
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The __________ is the standard deviation of the estimated value
of the mean of the actual...
You know that a random variable has a normal distribution with standard deviation of 16. After...
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4. Calculating the standard deviation and the estimated standard error for the sample mean difference Aa...
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Given a sample mean=13.24; sample standard deviation=3.40; estimated standard error of the mean=0.567; margin of error...
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5. Suppose X follows a normal distribution with mean u = 200 and standard deviation o...
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99 and standard deviation σ A population whose distribution is unknown has mean μ and a sample of...
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If a normal distribution has mean 34.31 and standard deviation 1.25, then the z-value for this...
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61. The figure above shows the standard normal distribution, with mean 0 and standard deviation 1, including approximate percents of the distribution corresponding to the six regions shown. The random variable Y is normally distributed with a mean of 470, and the value Y = 340 is at the 15th percentile of the distribution. Of the following, which is the best estimate of the standard deviation of the distribution? A. 125 B. 135 C. 145 D. 155 E. 165
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In a sample of n= 11 lichen specimens, the researchers found the mean and standard deviation of the amount of the radioactive element, cesium- 137, that was present to be 0.009 and 0.003 microcurie per milliliter, respectively. Suppose the researchers want to increase the sample size in order to estimate the mean μ to within 0.002 microcurie per milliliter of its true value, using a 95% confidence interval. Complete parts a through c. a. What is the confidence level desired...
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