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The average weight of an airline passenger's suitcase is 45 pounds (µ=45). The standard deviation is 2 pounds (σ = 2). If 20% of the suitcases are overweight, find the maximum weight allowed by the airline. That is, find the 80th percentile, which is the X that represents the weight of the suitcase. Assume that the variable is normally distributed.
Can the company conclude that the pill is effective at promoting weight loss? Write the hypotheses and conduct the appropriate hypothesis test.
Search the internet for a line, circle, or bar graph that either misrepresents the information being portrayed, is confusing, or doesn't do a good job representing the information. Copy and paste the graph below. Do not use graphs from other schoo..
If individual luggage weights are independent, normally distributed rv's, what is the probability that total luggage weight is at most 2500 lb?
Draw the statistics as a histogram. Do they resemble the Normal Distribution? Find the median, the average grade and the standard deviation of the two terms.
Assume rf is 5% and rm is 10%. According to the SML and CAPM, an asset with a beta of -2.0 has a required return of negative 5%[=5-2(10-5)]. Can this be possoble?
there are 14 marketing firms hiring new graduates. kate randomly found the recruitment ads of six of these firms and
search the data and provide a hypothesis for which you would use a z test to determine whether the research results are
In a survey of students at a local college it was decided to give part-time students twice the chance of selection because of the smaller numbers involved and the diversity of their study patterns.
Stat 11 Spring 2011 - Homework 1. A team of seven lightweight male rowers has an average weight of 158.2 pounds. The team plans to race in an eight-man boat, so another rower is needed. If the team needs to maintain an average (mean) weight below ..
a sample of size 100 has a sample standard deviation of 25. what is the standard error of the sample mean? give your
the most popular color for cars is white 30 black 17 red 14 silver 12 gray 11 blue 11 and other 8. a survey of 180
let x the number of flaws on the surface of a randomly selected boiler of a certain type have a poisson distribution
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