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Owners of a new coffee shop tracked sales for the first 20 days and displayed the data in a scatterplot (by day):
a) Make a histogram of the daily sales since the shop has been in business.
b) State one fact that is obvious from the scatterplot, but not from the histogram.
c) State one fact that is obvious from the histogram, but not from the scatterplot.
Two types of flares are tested for their burning times (in minutes) and sample results are given below.
in a gallop poll of 1005 randomly selected americans in april 2006 482 responded yes to the question do you consider
In a carnival game the players selects two coins from a bag containing two silver dollars and six slugs. Write down the probability distribution for the winnings and determine how much the player would have to pay so that he would break even, on t..
the number of patients arriving at a medical emergency can be modelled as poisson process with a mean of 25 arrivals
A medical school claims that more than 28% of its students plan to go into general practice. It is found that among a random smaple of 130 of the school's students, 32% of them plan to go into general practice. Find the P-value for a test of the s..
Explain how the power of a hypothesis test is influenced by each of the following. Assume that all other factors are held constant.
The "Top Three" at a racetrack consists of picking the correct order of the first three horses in a race. If there are 10 horses in a particular race, how many "Top Three" outcomes are there?
In the definition of Wilcoxon's statistic, let W1 be the sum of the ranks of those observations of the sample that are positive and let W2 be the sum of the ranks of those observations that are negative. Then W = W1 - W2.
What are the benefits of using control charts?- Explain the difference between common causes and special causes. Give examples of each.
Calculate the Mean, Median, Mode, Range and Standard deviation of this sample. Show Calculations: Use any calculation method desired
This project is intended to explore the history of the issue, changes that have occurred and how those changes impact Quality in an organization. The usage of current and historical statistics will be useful in supporting your position and analysi..
Use the SPSS output to determine if there is sufficient evidence to conclude that Sally bakes a better pie than Pat (i.e., the average rating for Sally at her church is higher than the average rating for Pat at her church).
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