Represents a simple random sample

Assignment Help Basic Statistics
Reference no: EM13975606

Based on past experience, a telemarketing firm has found that calls to prospective customers take an average of 2.0 minutes, with a standard deviation of 1.5 minutes. The distribution is positively skewed, since persons who actually become customers require more of the caller's time than those who are not home, who simply hang up, or who say they're not interested. Albert has been given a quota of 220 calls for tomorrow, and he works an 8-hour day. Assuming that his list represents a simple random sample of those persons who could be called, what is the probability that Albert will meet or exceed his quota?

Reference no: EM13975606

Questions Cloud

Determine the powers and roots of complex numbers : Derive a rule to estimate the network resistance when one of the resistors has a much smaller resistance than the other two and derive a rule to estimate the network resistance when two of the resistors have much smaller values.
Problem regarding the simple random sample of size : When the machine is properly calibrated, what is the probability that the mean for a simple random sample of this size will be at least 26.2 seconds? Based on the probability determined in part (b), does it seem likely that the machine is properly..
Assume that the company is considering a merger : The possible merger currently faces some threats and that the industry decides on self-expansion as an alternative strategy, describe the additional complexities that would arise under this new scenario of expansion via capital projects.
How are the 19th century reforms related to each other : Would the reform movements of this period (Ex: prison reform, education reform, Temperance Movement, abolition, and women's rights) have progressed as they did without the influence of the Second Great Awakening and religion?
Represents a simple random sample : Albert has been given a quota of 220 calls for tomorrow, and he works an 8-hour day. Assuming that his list represents a simple random sample of those persons who could be called, what is the probability that Albert will meet or exceed his quota?
Shape of the population distribution : In 2009, the average fee paid by H&R  Block tax preparation customers was $187. Assume that the standard deviation of fees was $60 but that we have no idea regarding the shape of the population distribution.
Provide support for your explanation : Explain why government regulation is or is not needed, citing the major reasons for government involvement in a market economy. Provide support for your explanation.
How can it directly be connected to history : Provide 3 specific passages that struck you as significant-or interesting, profound, amusing, illuminating, disturbing, sad...?
What is the spacing between the slits : The figure below shows the light intensity on a screen 2.7m behind a double slit. The wavelength of the lightis 519 nm . What is the spacing between the slits?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Test claim new nversion has standard deviation equal to old

Standard deviation of 424 and 155 respectively. at the .05 level of significance, test the claim that the new version has standard deviation equal to that of the past version.

  Find the minimum shape size n needed to estimate mu find

find the minimum shape size n needed to estimate mu find the given values of c s and ec0.98 s9.7 e1assume that the

  Describing hypothesis testing

In order to determine whether or not a driver's education course improves the scores on a driving exam, a sample of six students were given the exam before and after taking the course. The results are shown below:

  Probability that a randomly selected mango

What is the probability that a randomly selected mango weighs less than 14 ounces?

  What are the components of a decision tree explain each

what are the components of a decision tree? explain each briefly.please answer in at least 3 sentences but no more than

  Outliers on the dependent variables

Did you find any outliers on the dependent variables that were due to errors of coding? If so, what and why? How would you correct an error of coding?

  Graph the model as well as investigate it by four models

You will investigate four different scenarios of population growth also decline in this town. Graph the model as well as investigate it by four different growth models.

  Finding z-value according to a normal distribution

Assume that a random variable, x, is distributed according to a normal distribution with mean 12 and standard deviation 2. Find the z-value if:

  The difference between the two population means

Construct the 95 percent confidence interval for the difference between the two population means.

  Calculating the sample size needed to estimate a population

After calculating the sample size needed to estimate a population proportion to within 0.04, your statistics professor told you the maximum allowable error must be reduced to just .01. If the original calculation led to a sample size of 800, the s..

  Probability that family-s monthly purchases is in range

The statistic has a normal distribution with a standard deviation of 10 gallons. Find the probability that the family's monthly purchases will be between 86and 96 gallons.

  Suppose an unfair coin comes up heads 368 of the time if

suppose an unfair coin comes up heads 36.8 of the time if it is flipped. if the coin is flipped 11 times what is the

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