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The average length of hockey sticks produced at an assembly line is 185 cm with a standard deviation of 15 cm. Furthermore, it is known that the length of the hockey sticks is normally distributed.
1. What is the probability that a randomly selected hockey stick will have a length of at least 193 cm?
2. Fill in the blank: 12.5% of the hockey sticks produced are longer than _____ cm?
The average age of students in a career college is 28 years with a standard deviation of 12 years. It is known that the age of the students follows a normal distribution.
1. What is the probability that a randomly selected student is older than 32 years old?
2. Fill in the blank: 25% of the students are older than ______ years?
suppose that 67 of the employees of a company participate in the companys medical savings program. let x be the number
Draw and find the area under the standard normal curve - Find the indicated z-score and Which normal curve has the greatest mean and standard deviation? And which normal curve has the smallest mean and standard deviation?
Criticize the following definitions in light of the eight rules for lexical definitions:- A symphony is a musical piece written for full orchestra.
the data in table are a sample of the cycle time in days to process and pay employee health insurance claims in a
Fuel efficiency of hatchbacks and large sedans. Let's compare the fuel efficiencies (miles per gallon) of model year 2009 hatchbacks and large sedans.34
Shoppers enter Hamilton Place Mall at an average of 120 per hour, and the number and shoppers is Poisson distributed. What is the probability that at least 5 shoppers will enter the mall between 5:00 and 5:05 p.m.?
this past year a gallup poll surveyed 1228 households in the u.s about gun ownership. of those surveyed 435 said they
For each of the following three populations, indicate what the sampling distribution for samples of 25 would consist of.
Two of the summary measures from the list mean, median, range, and interquartile range are resistant, while the other two are not. Explain which two are resistant and which two are not.
Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample half the size. Indicate the resulting alpha and beta. Present an argument that your study is worth doing with th..
Conduct a statistical test to determine if the sample is representative of the population.
Determine the interval of values that is centered at the mean and includes 50% of the IQs of the students at that university.
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