Poisson distribution-confidence interval-probability

Assignment Help Basic Statistics
Reference no: EM13104154

1.) If you buy a box of Wisk, the probability of getting a scoop is 97%. If you buy 9 boxes over the next several months, what is the probability of missing two scoops?

2.) The average length of a cellular phone call in the US is 3.4 minutes. If the standard deviation of those calls is .07 minutes (population standard deviation), what is a 99% confidence interval? We calculated the mean from 86 cellular calls.

3.) A customer service agent gets a call every 6 minutes. What is the probability that the agent will get less than 8 calls during the third hour she works?

Reference no: EM13104154

Questions Cloud

Articulate key aspects of operations management : Articulate key aspects of operations management. Explain why operations management is important to managers in various organizational areas.
Case study based on advertising strategy : You have just been appointed the Vice President of Advertising at the Keller Advertising Agency! Your agency has just signed a new client, LibraTech, that wants to introduce their new eReader into the marketplace in a way that will scare the competit..
What is the magnetic field at the center : A straight conductor carrying a current of 19 A splits into identical semicircular arcs of radius 13.3 m. The positive direction is out of the screen. What is the magnetic field at the center of the resulting circular configuration?
Determining the p-value for the test : Test the claim at alpha-.05 that the average wage has not changed by finding the p-value for the test.
Poisson distribution-confidence interval-probability : If you buy a box of Wisk, the probability of getting a scoop is 97%. If you buy 9 boxes over the next several months, what is the probability of missing two scoops?
Average number of acres in western pennsylvania : A state executive claims that the average number of acres in western Pennsylvania State Park is less than 2000 acres. A random sample of five parks is selected, and the number of acres is shown. At alpha=.01, is there enough evidence to support th..
Information about applied statistics : A geological study indicates that wells drilled in a certain area should strike water with probability 0.2. Find the probability that:
Question about applied probability : A research company stated that 20% of missed school days are due to asthma. If a group of 400 school children are selected at random, what is the probability that fewer than 70 will miss school because of asthma?
Sample of stipends of teaching assistants in economics : A random sample of stipends of teaching assistants in economics is listed below. Is there sufficient evidence at the alpha=.05 level to conclude that the average stipend different from $15,000? The data is listed below:

Reviews

Write a Review

Basic Statistics Questions & Answers

  Poisson distribution-confidence interval

The mean number of cargo ships that arrive at a port is 3 per day. The port has staff and facilities to handle up to 6 ships in a day. Using the Poisson distribution, find the probability that, on a given day,

  Possibility of subcommittees

If they must form an ethics subcommittee of 4 members, how many different subcommittees are possible?

  Pumping during a randomly selected minute

A machine is set to pump cleanser into a process at the rate of 8 gallons per minute. Upon inspection, it is learned that the machine actually pumps cleanser at a rate described by the uniform distribution over the interval 7.5 to 10.5 gallons per..

  Significance level to test the claim

Consider a hypothesis test that uses a 0.05 significance level to test the claim that the mean body tem of the population is less than 98.6

  Claiming the population mean of all bear weights

Assuming that the standard deviation is known to be 121.8Ib use 0.05 significance level to test the claim that the population mean of all such bear weights is greater than 150 Ib

  Anova-regression and hypothesis testing

If the sample size is 36 with three treatment means (response variables) and you are performing an ANOVA, then the degrees of freedom for the error term will be:

  Estimating normal distribution with standard deviation

According to the retail electronics chain, adults in 40 to 50 year old age group, the mean amount spent per year on electronics is $1998.

  Clarification of probability

A recent survey reported in Business Week dealt with the salaries of CEOs at large corporations and whether company shareholders made money or lost money.

  Test the hypothesis-producing the same mean

Use an alpha level of .01 and test the hypothesis that the two methods are producing the same mean.

  Information about pearson correlation

What information is provided by the numerical value of the Pearson correlation? For the following scores, compute the Pearson correlation:

  Determining dimensions of resulting exchanger

Determine the dimensions of resulting exchanger?

  Reliability of components in series system

A University Web server has five main components each with the same reliability. All five components must work for the server to function as intended.

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