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Question: The amount of oil pumped daily at Standard Oil's facilities in Prudhoe Bay is normally distributed with mean 800,000 barrels and standard deviation 10,000. In determining the amount of oil the company must report as its lower limit of daily production, the company wants to choose an amount such that for 80% of the days, at least the reported amount x is produced. Determine the value of the lower limit x.
Define the standard error of the mean. What happens to the standard error as the sample size increases? Explain
Is this experiment collectively exhaustive? Explain.
assuming that the true mean of the population is 5 the standard deviation of the population is 0.75.1- calculate the
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children.
What was the purpose of calculating a Cohen's d? When is a Cohen's d calculated? Interpret d=.90. What does it mean in this example?
Identify at least 2 variables for which you would utilize a repeated-measures ANOVA in your analysis. Describe the variables and their scale of measurement.
Assume the random variable x is normally distributed with mean u = 88 and standard deviation o = 4. Find the indicated probability. P(x
if a population has a standard deviation ? of 25 units what is the standard error of the mean if samples of size 100
The following data pertain to x, the amount of fertilizer (in pounds) that a farmer applies to his soil, and y, his yield of wheat (in bushels per acre):
Give the expected value and standard deviation of defective shoes in the ShoeFit store order.
An executive drives his vehicle from home to work daily. Driving times are normally distributed with a mean of 35 minutes and standard deviation of 8 minutes.
Then repeat the process of generating 1000 confidence intervals. Report the percent hit. How does this compare with the percent hit that you found in the previous exercise?
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