Find percent of the population talk between given time

Assignment Help Basic Statistics
Reference no: EM13151398

Assume the number of minutes of cell phone use is a normal distribution with a population mean of 200 minutes and a population standard deviation of 50 minutes. What percent of the population talk between 175 minutes and 245 minutes?

Reference no: EM13151398

Questions Cloud

What are evolutionary trade-offs : What are evolutionary trade-offs? Under what circumstances is it better to have more offspring? Or larger offspring?
Calculate the capital balance of each partner : Calculate the capital balance of each partner in the partnership subsequent to the contributions. Prepare the journal entry necessary to record the partners' contributions.
Subgame perfect equilibrium : Consider the timing: The incumbent chooses whether to invest; then the entrant observes the incumbents investment decision; then the firms compete in prices. Show that in subgame perfect equilibrium (SPNE) the incumbent does not invest.
What is their risk for having a child with cystic fibrosis : Explain how it is possible that Brad has two mutated CFTR genes when no one else in his family has cystic fibrosis.
Find percent of the population talk between given time : A population standard deviation of 50 minutes. What percent of the population talk between 175 minutes and 245 minutes?
Apply the comparable profits method to assess the reasonable : Using this information regarding comparable uncontrolled U.S. distributors, apply the comparable profi ts method to assess the reasonableness of Flagco's reported profi ts. In addition, if an adjustment to Flagco's reported profi ts is required, comp..
Depopulation of whales worldwide : How are the depopulation of Whales worldwide and Congested Highways similar in terms of economics? What are some possible solutions to both?
What is the cell potential (ecell) : The standard cell potential (Ecell) of the zinc-air battery is 1.65V. If at 25 degrees celcius the partial pressure of oxygen in the iar diffusing through its cathode is 0.22atm, what is the cell potential (Ecell)? Assume the cell reaction is:
Leased asset at the lease inception : If Pisa, Inc.'s incremental borrowing rate is 10% and the rate implicit in the lease (which is known by Pisa, Inc.) is 8%, what is the amount recorded for the leased asset at the lease inception?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Americans of mexican ancestry-hypothesis test

a) Set up the null and alternative hypotheses, and perform the hypothesis test. b) Does the jury selection system appear to be fair?

  Determining mean of money withdrawn from atms

If random sample of thirty six customer transactions points out that sample mean withdrawal amount is $172, is there evidence to think that population mean withdrawal amount is no longer $160? Determine the mean of data above?

  Exams-confidence intervals

Prof Hardtack gave three exams last semester in a large lecture class. The standard deviation = 7 was the same on all three exams, and scores were normally distributed.

  Prime factorization of integer

In the prime factorization of an integer, what is the maximum number of prime factors greater than the square root of that integer? If there is a prime factor greater than the square root of that integer

  Report a table of marginal means

Report a table of marginal means for each level of each of the three factors.

  Confidence interval for average age of students in statistic

Their average age was 19.1 years with a standard deviation of 1.5 years. What is the 95% confidence interval for the population mean?

  Variance in the cognitive scores

Does the regression equation account for a significant portion of the variance in the cognitive scores? Use a=.05 to evaluate the F-ratio.

  Test statistic for a two sample rank-sum test

Find the value of W, the test statistic for a two sample rank-sum test that would compare the two methods for losing weight. Give the details of how you found W. Please show your step-by-step hand calculation here.

  Reducing the maximum error of estimation

A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..

  How company select t to maximize the expected profit

The computer breaks down x times during t hours, it costs 50x2 dollars to fix it. How should the company select t in order to maximize the expected profit?

  Find the probability that a resident plays poker

The residents play both shuffleboard and poker, find the probability that a resident plays poker, given that they garden (that is, find P(poker | garden).

  Business statistics application

Design a 95 percent confidence interval for the proportion of defectives in a large lot, if a sample of 200 showed 12 defectives.

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