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Suppose you know that male height (for adults) is normally distributed with a mean of 70 inches and a std dev of 3 inches.
a) How many deviations is a 74.5 from the mean?
b) What is the z value for 74.5?
c) Why are they the same?
d) Suppose a male person is 68 inches, what percentage of males are shorter than him? Taller than him?
e) Suppose you chose 50 males. What is the probability that their mean height is above 71 inches?
1- ounce chocolate chip cookies resulted in following calorie amounts. At α=0.01 level, is there sufficient evidence that average calorie content is greater than 110 calories.
question the gallup organization contacts 1709 adult men who are 40 to 60 yrs of age and live in the united states
Given the high cost of international air freight service, why would companies choose this mode of transportation?
Explain the assignment model and how it is similar to a transportation problem. Give a real-world example of an assignment model to describe what is transported where.
Give an example of a hypothesis test you could perform at work or at home. State what the Null and the Alternative hypotheses would be in your test.
Construct the following confidence intervals for your data set:
1. IA Credit Card Company wants to evaluate the usage of their card. They randomly selected 16 credit card holders and found that the mean amount they charged in the past twelve months was $2017, while the standard deviation was $867.
discuss a decision familiar to you that can be analyzed by using a decision tree.please answer in at least 3 sentences
Is there sufficient evidence at the 0.05 level of significance to conclude that the proportion of women physicians at the university health system exceeds 27.9%?
Assume that the master budget for Cannondale shows total variable expenses of $10,000. The budget was based on production of 5,000 units. Cannondale sells all units it produces.
Let X1,..., Xn be a random sample from a population with the mean μ. What condition must be imposed on the constants c1, c2,..., cn so that c1X1 + c2X2 + ··· + cnXn is an unbiased estimator of μ?
Evaluated that there is a 95% probability of only slight losses of around $1 million. Using decision tree analysis, determined whether bank must install new power generator.
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