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1. The amounts a soft drink machine is designed to dispense for each drink are normally? distributed, with a mean of 11.6 fluid ounces and a standard deviation of 0.2 fluid ounce. A drink is randomly selected.
?(a) Find the probability that the drink is less than 11.5 fluid ounces.
?(b) Find the probability that the drink is between 11.3 and 11.5fluid ounces.
?(c) Find the probability that the drink is more than 12 fluid ounces. Can this be considered an unusual? event?
2. Find the? z-scores for which 7070?% of the? distribution's area lies between minus-z and z
Write a program to toss a coin 10,000 times. Let Sn be the number of heads in the first n tosses. Have your program print out, after every 1000 tosses, Sn - n/2. On the basis of this simulation
At a 0.05 level of significance, does this data show that 2 year college students and private unversity students work an equivalent amount of time?
What should your visual aids include that allows you to gauge customer interest and help move to the close? What are several examples?
What is the probability of selling your home for the median price in your city (My zip code is 91730 Alta Loma). How has the graphical display of data changed in the last 10 years? How will it change in the next 10 years?
1 an important measure of the performance of a locomotive is its adhesion which is the locomotives pulling force as a
Use a 0.05 significance level to test the claim that fewer than half of all teenagers in the population feel that grades are their greatest source of pressure.
(a) What is the probability a randomly chosen person in this group requested at least one of these two features? (b) What proportion of the people in this group requested neither feature? (c) What proportion of the people in this group requested an a..
Use a calculator or appropriate computer software to verify that, for the preceding data, xbar = 5.1.
The survey in the previous exercise also asked iPhone users what phone, if any, the iPhone replaced. Here are the responses:
Indicate whether each of the following random variables is discrete or continuous.- The number of drive-through customers at your local McDonald's today.
After being repaired, a machine functions for an exponential time with rate λ and then fails. Upon failure, a repair process begins. The repair process proceeds sequen- tially through k distinct phases. First a phase 1 repair must be performed, th..
Construct the 90% and 99% confidence interval for population mean. Which interval is wider? If convenient, utilize technology to construct confidence intervals.
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