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

  Probability that randomly selected cat cost more than dog

In other words, you are finding the probability that a randomly selected cat will cost more than a randomly selected dog in terms of their annual medical costs.

  Logistic regression model

A researcher was interested in determining whether incentives affect the response rate in surveys. A simple random sample of 50 adult residents of a large city was selected. All were mailed a survey and promised a check upon returning a completed ..

  Importance of hypothesis testing for independence

What is the importance of hypothesis testing for independence of variables using two-way tables? Is there an example of this for a better understanding?

  What percentage of pregnancies last between in range

Assume that the duration of human pregnancies can be described by a normal model with mean 268 days and standard deviation 17 days. What percentage of pregnancies should last between 260 and 270 days?

  Use z values that leave out in lower and upper tails

Construct a confidence interval for a level of confidence equal to 95%, we use z values that leave out, in the lower and the upper tails of the normal distribution, an area equal to?

  Calculate average time between arrivals

Simulate arrival of cars at service station for one hour using different stream of random numbers from those used in (a), and calculate average time between arrivals.

  Descrete distribution introduction

What is the probability that the team wins tonight and that there will be a large crowd at tomorrow's game?

  Probabilities for discrete random variables

How would I go about finding the probabilities for the following discrete random variables? Among a shipment of 5,000 tires, 1,000 are slightly blemished. If one purchases 10 of these tires, what is the probability that 3 or less (P (x

  Two-sided test for sample mean of accounts receivable

Lets say a business has account receivables per customer of $60.54. There was a random sampling of 19 accounts that revealed a sample mean of $73.55 and a sample standard deviation of $19.29.

  Problem of z-score

A five-year old study claims that selling prices of new homes / condominiums in the New York area have a normal distribution with mean = $180,000 and standard deviation = $40,000.

  Find probability that light bulb will burn out in less hours

The number of hours a 100 watt bulb will operate before burning out is approximately normally distributed with standard deviation σ=50.

  Determining z-scores for actual heights

What the information do z-scores give that actual heights do no?

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