Length of a randomly chosen call

Assignment Help Basic Statistics
Reference no: EM13104094

The length of a particular telemarketing phone call has an exponential distribution with a mean equal to 1.5 minutes. Find the probability that the length of a randomly selected call will be between 30 - 50 minutes and 1 minuter or longer.

Reference no: EM13104094

Questions Cloud

Determining probability of scoring : Jessica must finish two courses (much like myself), statistics and economics, in order to complete the requirements for a BA degree. All along she has maintained an 80% average.
Product in a blue colored or silver package : If the research question were defined as will buyers purchase more of a product in a blue colored or silver package? the most appropriate type of research would be
Creating swot analysis : Create a SWOT analysis. Included in this report should be the company's official mission statement and how you feel the company is meeting its mission.
Probability of brain cancer : Brain cancer is a rare disease. In any year there are about 3.1 cases per 100000 od population. Suppose a small medical insurance company has 150000 people on its books.
Length of a randomly chosen call : The length of a particular telemarketing phone call has an exponential distribution with a mean equal to 1.5 minutes. Find the probability that the length of a randomly selected call will be between 30 - 50 minutes and 1 minuter or longer.
Discuss the challenges when launching new product : What are some of the challenges when launching a new product or service that you think you will face and how do you plan to overcome that?
Describe tradeoffs between lifecycle and first cost analyses : Create the 1,050- to 1,400-word paper in which you describe tradeoffs between lifecycle and first cost analyses in terms of risk and cost.
Standard deviation of the height distribution : The distribution of the height of students in a large class is roughly bell-shaped. The average height is 68 inches, and approximately 95% of the heights are between 62 and 74 inches. Thus, the standard deviation of the height distribution is appr..
Implications of reserved parking for certain members : What are the motivational implications of organizations having reserved parking for certain members? What are the pros and cons of reserved parking from an expectancy theory perspective?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Binomial tree for currency put option

An American put option to sell a swiss franc for dollars has a strike price of $0.80 and a time to maturity of one year. The volatility of the swiss franc is 10%

  Normal dostribution regarding gasoline prices

Assume gasoline prices for a region are normally distributed. do the data you obtain provide enough evidence to reject the claim? use 1% level of significance.

  Standard deviation of the mean

The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?

  Information about stat problem

A psychologist has designed a questionnaire to measure individuals' aggressiveness. Assume that the scores on the questionnaire are normally distributed with a standard deviation of 80.

  Test null hypothesis against alternative hpothesis

test null hypothesis: Meu=80 against alternative hpothesis=negative = 80 (alpha =.05). What does this tell you about meu?

  Reject the null hypothesis

At the .05 level, you are testing whether there is a significant difference in the proportions of college students and similar aged non college students having accidents during the two year period. If you determine not to reject the null hypothesi..

  Standard deviation of grouped frequency data

The following frequency table summarizes the ages of 100 shoppers at the local grocery store. Compute the sample variance and standard deviation for this data set. Please show your work in Excel.

  Mean and variance based on frequency distribution

Given sample data arranged in a frequency distribution table. Use Excel to calculate the sample mean and variance from this data set.

  Performing a contingency analysis

Perform a contingency analysis on the data to determine if there is any dependency between the number of level of education attained by the father and the size of his family.

  Probability that student is a united states citizen

A class contains 30 students. Ten are female (F) and U.S. citizens (U); 12 are male (M) and U.S. citizens; 6 are female and non-U.S. citizens (N); 2 are male and non U.S. citizens. A name is randomly selected from the class roster and it is female..

  Simple regression analysis-state crime case

We are asked to investigate the hypothesis that the number of crimes is related to police expenditures because states with higher crime rates are likely to increase their police force, thereby spending more on the number of officers on the street.

  Regression model

What is the equation for this regression model?

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