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Q. An owner of a chain of stores would like to predict weekly sales based on the number of customers who made a purchase. A random sample of 10 stores were selected. The weekly sales are in thousands of dollars. What is the slope, y-intercept and the conclusion based from the data. Customers Weekly Sales --------- ------------ 907 11.20 926 11.05 506 6.84 741 9.21 789 9.42 889 10.08 874 9.45 510 6.73 529 7.24 420 6.12
Probability based on addition rule - Find the probability that a randomly chosen sold automobile from this sample is silver or an SUV?
Electricity is commonly traded at the California-Oregon border (COB) and Palo Verde (PV) in Arizona. Assume you take a sample of 100 daily electricity market closing prices (in $/megawatthour) from both COB and PV.
A bookcase contains 3 statistics books and 4 biology books. If 2 books are chosen at random, find the chance that both are statistics books.
The demand for airplane passengers (Y) is a function of a average fare (X1), the fare of the competing airline, and the annual per capital income of the passengers(X3)
If the rods' lengths produced by your line are normally distributed, with a mean equal to the target of 0.2 meters, and a standard deviation of 0.015m, what percentage of rods will be scrapped?
Re item 4, assume the critical value for this test is 4.92, and you obtain a computed statistical value of 7.45. Is there evidence to refuse null hypothesis? Describe why or why not?
A coin is flipped three times.a. Draw a tree diagram that represents all possibleoutcomes. b. Identify all branches that represent the event"exactly one head occurred.
Calculate the control limits for a c chart when Ubar = 3.0%, n = 60, and you collect one sample per hour for 40 hours of production. (2 sets of control limits required, x bar and range)
The actual proportion of doctors is less than 90%, a random sample of 100 doctors resulted in 85 who recommended brand Z. The test statistic is approximately?
How actually p value represents a distribution pattern whether it is normal or not? u explain the anderson-darling test regarding the normal graph.
h-p is said to be the leading seller of pc's in the U.S WITH 27% share of the pc market. if a researcher selects 130 recent pc purchases
Please provide an answer to the questions below that contains 250 to 300 words to each. How does the knowledge of simplifying an expression help you to solve an equation efficiently? Give an example of using and not using simplification to illustra..
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