Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question: Coffee and doughnuts. At a certain coffee shop, all the customers buy a cup of coffee; some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 320 cups and a standard deviation of 20 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 150 doughnuts and a standard deviation of 12.
a) The shop is open every day but Sunday. Assuming day-to-day sales are independent, what's the probability he'll sell over 2000 cups of coffee in a week?
b) If he makes a profit of 50 cents on each cup of coffee and 40 cents on each doughnut, can he reasonably expect to have a day s profit of over $300? Explain.
c) What's the probability that on any given day he'll sell a doughnut to more than half of his coffee customers?
suppose a shipment of 50 cell phones has arrived from your supplier the samsing manufacturer. as the engineer for your
Can long-term exposure to strong electromagnetic fields cause cancer?- Researchers in Italy tracked down 13 years of medical records for people living near Vatican Radio s powerful broadcast antennas.
Specify the null and alternative hypotheses in words for each of the following research questions. Does listening to Mozart increase performance.
suppose that replacement times for washing machines have a mean of 9.3 years and a standard deviation of 1.1 years.
What types of variables are measured using Pearson coefficient, and what types variables are measured with chi square; I am looking for names of variables (e.g., nominal, interval)?
because not all airline passengers show up for their reserved seat an airline sells 126 tickets for a flight that holds
One of the most famous labor/management conflicts took place in the 1902 Coal Strike in Pennsylvania. The strike brought the coalmine owner George Baer against the United Mine Workers Union, and led Theodore Roosevelt to sponsor government interve..
A researcher tested the reading ability of two groups of primary care patients. The scores on the test range from 1 to 9 with 9 indicating a high degree of reading ability and 1 very limited reading ability.
Now we are going to talk about continuous probability distributions. In a continuous probability distribution, the variable can have a value within a range.
a) Under what circumstances can z be greater than one? b) Under what circumstances can a probability be greater than one?
The results are shown below. Research question: Are the mean waiting times the same for emergency patients in these four hospitals? Use 0.05 for the significance level in making your decision.
Test the hypothesis, at the 0.05 level of significance, that the size of a family is independent of the level of education attained by the father.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd