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There are many examples of the role of noise in human communications. One story concerns a communication exchange which purportedly took place during the First World War. The message sent by the source was ‘Send reinforcements, we're going to advance'. As the result of ‘noise' in the channel the message which finally arrived was ‘Send three-and-four-pence, we're going to a dance'. (a) What forms of noise may have contributed to this miscommunication? (b) State some ways in which this noise could have been reduced.
suppose that 67 of the employees of a company participate in the companys medical savings program. let x be the number
A package of seeds states that the probability of germination is 0.92. For a package containing 75 seeds, the mean and variance of the number of seeds germinating are:
Based on an SRS of 50 pineapples with a mean weight of 31.6 ounces, did the new irrigation system cause an increase in the mean weights of pineapples produced? Explain your answer completely.
the snappy service gas station manager is thinking about a promotion that she hopes will bring in more business to the
A bond analyst is analyzing the interest rates for equivalent municipal bonds issued by two different states. At= .05, is there a difference in the interest rates paid by the two states?
1. you are testing h0 mmean 10 against hammean lt 10 based on an srs of 23 observations from a normal population. the
question light bulbs are tested to see if they work or n ot. the probability of a bulb working properly is 0.8. 100
Compute the probability of selecting a credit card customer at random and finding the customer charged between $70 and $83 last month.
an irate customer called dollar day mail order company 40 times during the last two weeks to see why his order had not
An independent second stage is normally distributed with a mean of 43 minutes and variance of 10 minutes. What is the probability that the two stages take over 80 minutes?
A game involving a pair of dice pays you 3 with probability 17/36, costs you 2 with probability 14/36, and costs you 4 with probability 5/36. What is your probability of losing money in one play of the game?
Construct a 90 percent confidence interval for the true mean weight. Describe factors which might cause variation in the weight of Tootsie Rolls during manufacture.
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