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Forty-three percent of adults would pay more for environmentally friendly products. You randomly select 12 adults. Find the probability that the number of adults who would pay more for environmentally friendly products is
a) exactly 4,
b) more than 4, and
c) between 4 and 8, inclusive.
a) Do a test to see if workers attitudes on this matter have changed using a 90% alpha. b) Explain to management what your findings are and what this suggests about future decisions vs work options.
Frank has a 66% chance of receiving an A grade in statistics, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in statistics or mathematics (or both).
The probability of a failure during the warranty period is 5%.if 90% of the connector are kept dry and 10% are wet, What proportion of connectors fail during the warranty period?
What is the probability of receiving more than three pieces of junk mail today?
Based on these results, a confidence interval for the population mean is found to be u = 5.7 PLUS OR MINUS 4.4. Find the degree of confidence.
to run a successful business you need to learn about your customers your competitors and your industry. market research
We considered Mary's interest in doing a study to see if learning of 6th graders on a math lesson is affected by background noise level. She was planning to use 2 noise conditions and then analyze her outcomes using a t-test for independent groups..
A person is given 4 coins each with equal and independent probabilities of being a nickel , a penny, a dime or a quarter. What is the probability the person has been 37 cents
post an analysis of how hypothesis testing and the use of confidence intervals are the same. then analyze how these are
an ice creaml shop found that 24 of customers buy more than one scoop per day from their shop.if 155 customers are
If, on the average, 20 orders are received by fax every two hours throughout the day, find the a. probability that a faxed order will arrive within the next 9 minutes.
The monthly sales demand for a new product is uncertain, but it is considered to be adequately described by a normal random variable with mean 50,000 units and variance 100,000,000.
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