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The owner of a farmer's market was interested in determining how many oranges a person buys when they buy oranges. He asked the cashiers over a weekend to count how many oranges a person bought when they bought oranges and record this number for analysis at a later time. The data is given below in the table. The random variable x represents the number of oranges purchased and P(x) represents the probability that a customer will buy x oranges. Determine the variance of the number of oranges purchased by a customer.
x 1 2 3 4 5 6 7 8 9 10
P(x) 0.05 0.19 0.20 0.25 0.12 0.10 0 0.08 0 0.01
a. What is the mean the number of oranges purchased?
b. What is the standard deviation for the number of oranges purchased?
Descriptive statistic results from quarterly sales figures over a 18 year period (73 qtr) are below. Please interpret the standard Deviation and Median in terms of sales results,
How many participants would be required to ensure that a 95% confidence interval for the mean difference in the number of drinks is within two drinks of the true mean? Assumed that the standard deviation of the difference in the mean number of dri..
Repeat (i) for n = 20,p = 0.5 for the binomial random variable, and λ = 10 for the Poisson random variable.
to determine if a new medication to lower blood pressure in adults would have the unpleasant side effect of weight gain
Composite sampling is a way to reduce laboratory testing costs. A public healthdepartment is testing for possible fecal contamination in public swimming pools. In thiscase, water samples from 5 pools are combined for one test.
gulf real estate properties just signed contracts for two new listings a gulf view condominium with a list price of
A discussion question. Describe how you would explain to a layman the meaning of the following statement:
1. What is a fail-safe circuit? 2. Under what condition is a hydraulic motor braking system desirable?
Suppose that network breakdowns occur randomly and independently of each other on an average rate of three per month. (a) What is the probability that there will be just one network breakdown during December? Interpret.
What is the probability of a child ending up with a bus stop as gender-unbalanced as my son's in our school district - perform the hypothesis test
The alternative is one sided: Ha: p0 > 0.5. The person gets 13 right out of 20. The p-value comes out to be 0.090. Explain the meaning of the p-value.
A recent study of the USA births showed the average birth weight of a male was 8 lbs.; the average weight of a female newborn was 7.4 lbs.
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