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Standard deviation versus standard error. Explain the difference between the standard deviation of a sample and the standard error of a statistic such as the sample mean.
Your fixed costs are presently $500,000 with a variable cost per unit of $25 per unit and a sales price of $43 Your options are: Increase your fixed costs by $50,000 which will decrease variable costs by $8 per unit.
A standard deviation of $12. Three solar homes reported monthly utility bills of $55, $53, and $51. Which of the following statements is true?
Person repeatedly and independent flips the fair coin to decide whether to take the step to left or to right from a point X. Find out expected number of times person returns to X.
Use the normal distribution to approximate the desired probability. Find the probability that in 200 tosses of a fair die, we will obtain at exactly 30 faces.
Explain why this does not necessarily prove that the special course caused the scores to go up.- Propose a design for an experiment that could test the effectiveness of the tutorial course.
shortly after starting the laundry you realize that you cannot nd your iphone 6 that contains your only complete set of
This number is an estimate of the probability that music is playing when you turn on this station. It is also an estimate of the proportion of time that music is playing on this station.
a survey in 2005 showed that 71 of the people polled felt that incurably ill patients should have the right to recieve
What is the probability that his on-base percentage will be less than 0.360? - What is the probability that his on-base percentage will be greater than 0.370?
By using significance level a = .05, and suppose a normal distribution what does evidence conclude?
What are your overall conclusions concerning the effects of nonblink time period on change in TBUT?
Develop a 95% confidence interval for the population mean number of hours spent watching videos and DVDs last year.
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