Evaluate the probabilities, Basic Statistics

Assignment Help:

Problem:

a. According to a Business week poll of 1035 adults, 40% of those surveyed agreed strongly with the proposition that business has too much power over American life (Business Week, September 2000). Assume this percentage is representative of the true population. In a sample of 10 individuals taken from the population, what is the probability that at least five of these individuals will feel that business has too much power over American life?

b. Suppose phone calls for assistance arrive at a rate of 48 per hour at the complaints desk of a company's after sale service department.

i. Compute the probabilities of receiving exactly 10 calls, 15 calls and 20 calls in 15 minutes.

ii. Suppose no calls are currently on hold. If the agent takes five minutes to complete the current call, how many callers do you expect to be waiting by that time? What is the probability that: (a) none and (b) exactly two will be waiting?

iii. If no calls are currently being processed, what is the probability that the agent can take three minutes for personal time without being interrupted by a call? What is the probability that he will receive only one call during these three minutes?


Related Discussions:- Evaluate the probabilities

Time series , what is the importance of time series

what is the importance of time series

Operation research, meaning,definition,scope,origin,advantages and limitati...

meaning,definition,scope,origin,advantages and limitation of operation research ?

Calculate the average profit, A machine is used for machining of a manufact...

A machine is used for machining of a manufactured product. At the beginning of each business day inspection reveals the machine's condition. There are three possible states: 0, 1 a

Confidence Intervals, In each of the following cases, compute 95 percent, 9...

In each of the following cases, compute 95 percent, 98 percent, and 99 percent confidence intervals for the population proportion p. p=.1, n=30, p = .1, n = 100, p = .5, n = 50, p

Surveys through schedules, Under this methods the enumerators are appointed...

Under this methods the enumerators are appointed and given training. They are provided with schedules containing relevant questions. These enumerators go to respondents with the

Estimate stand-up time using the rmr system, SCENARIO It is proposed to...

SCENARIO It is proposed to construct a 3m diameter, 50m long tunnel, heading 0950, through the andesite lava flow at Maori Bay (Muriwai). As part of the preliminary investigati

Probability, Draw a tree diagram to represent all probabilities for the fol...

Draw a tree diagram to represent all probabilities for the following. a bag contains 11 red and 8 blue marbles. Two marbles are selected at random without replacement from the bag.

Calculates the value of variance and standard deviation, You are a psycholo...

You are a psychologist who has collected the subjective well-being scores of a number of elderly people aged 90 or above who are residents of an independent living facility or who

The value of its common stock, The Washington Corp stock has a β of 1.15 an...

The Washington Corp stock has a β of 1.15 and it will pay a dividend of $2.50 next year. The expected rate of return of the market is 17% and the current riskless rate is 9%. The e

How to calculate midrange in statistics?, Midrange The midrange is the ...

Midrange The midrange is the measure of the center that is the value midway between the highest and the lowest values in the original data set. It is found by adding the highes

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd