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An observation was drawn from a normally distributed population with mean 2.397 and standard deviation 0.612. If the observed value is 3.144, find the z-score. Give your answer accurate to 3 decimal places.
suppose the current price of gold is 930ounce. suppose also that the price 1 month from today has a normal distribution
calculate the estimate from the following n 10 observations on vibratory stress of a turbine blade under specified
What is the p value? Describe the steps in formal hypothesis testing. Make at least one comment for each step.
Do you agree or disagree? Discuss briefly. Notes. "Baseline characteristics" are characteristics of subjects measured at the beginning of the study, i.e., just before randomization. The quote, slightly edited, is from Victora et al (2004).
Determine the earliest and latest start and finish times, the critical path, and the expected project duration. What is the probability that the center will complete its move before the start of the fall semester?
The weight for a group of 18 month-0ld girls are normally distributed with a mean of 24.4 pounds and a standard deviation of 2.6 pounds. Use the table to find the percentage of 18 month-old girls who weigh more than 27.8 pounds.
Evaluate the probability that patient taking drug will experience flu symptoms.
we are interested in determining whether or not the variances of the sales at two music stores a and b are equal. a
At 0.01 level of significance, is there evidence that mean price is higher at Whole Foods Market than at Fairyway supermarket? Interpret the meaning of p-value in (i).
Conduct a simulation to compare the various bootstrap con?dence interval methods. Let n = 50 and let T (F ) =( (x - µ)3dF (x)/σ3 be the skewness.
A family has 5 children and 1 of them is a boy the percentage of boy is 1/5, or .020. Do you think one could say the chances of any woman having a boy would be 1/5?
A prof. can't decide how to vote on a tuition increase for the students at her univ. The incrase is supposed to pay for new student parking and there appears to be mixed feelings. The prof.
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