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The Central Limit Theorem does not specify what is meant by "a sufficiently large sample." What factor(s) about the population of values do you think determine how large is large enough for the approximate normal shape to hold?
Consider the California Decco example. Do you think n = 30 would be large enough for the distribution of possible values for the average loss to be approximately normal? Why or why not? Now consider the handspan measurements of females.
Do you think n = 30 would be large enough for the approximate normal shape to hold? What is different about these two examples?
The quality control inspector has been instructed to reject the shipment if, in a simple random sample of 40, 15% or more are defective. What is the probability that the shipment will be rejected?
If an auction house is selling products to risk neutral buyers, which of the types of auction would you recommend? If you are a potential buyer, what might your strategy be? Support your answers using economic analysis learned in this course.
the width of a slot of a duralumin forging is in inches normally distributed with micro 0.9000 and ? 0.0030. the
Based on this sample, is Moe correct in his assertion? Write up formal commentary of results of your test.
Samples can be chosen using a probability sampling plan and they can be chosen by selecting a simple random sample. One of these methods is a special case of the other. Explain which one is a special case of the other.
Shaver Manufacturing, Inc., offers dental insurance to its employees. A recent study by the human resource director shows the annual cost per employee per year followed the normal probability distribution
Research the topic of Job Satisfaction and provide a 1 page write-up of the research highlighting where statistical analysis is being used and why it's used.
A student was asked to find a 90% confidence interval for widget width using data from a random sample of size n = 27. Which of the following is a correct interpretation of the interval 10.2
a new fuel injection system is experiencing failures. the reliability function isrt t 1-32 tgt0t is in years. the
We are planning an experiment on the quality of video tape and have purchased 24 tapes, four tapes from each of six types. The six types of tape were 1) brand A high cost, 2) brand A low cost, 3) brand B high cost, 4) brand B low cost, 5) brand C ..
A bowl contains two red and eight yellow balls. Balls are drawn at random, one at a time, without replacement. Compute the probability that the second red ball is the fourth ball drawn.
1. the daily demand for milk in gallons at gillis grocery is n1000 100. how many gallons must be in stock at the
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