Probability or statistics

Assignment Help Basic Statistics
Reference no: EM131747527

Probability or Statistics

In each of the following problems, identify the population and the sample, and determine whether the question involves probability or statistics.

a. Seventy-five percent of all people who buy a dining room table purchase matching chairs. Five people who purchased a dining room table within the last month are selected at random. What is the probability that all five purchased matching chairs? b. Twenty-five people entering a rest area and food court on Highway 59 near Houston are selected at random. Of these 25 people, 20 purchased food from at least one of the eateries. Estimate the true proportion of people stopping at this rest area who purchase food.

c. Historical records indicate 1 out of every 500 people using a particularly steep water slide suffer some kind of injury. Fifty people using the slide are selected at random. How many do you expect to be injured?

d. A building inspector in Henderson, Nevada, is checking public buildings with doors that open automatically. One hundred doors are randomly selected. Careful inspection reveals that 12 doors are broken. Use this information to estimate the percentage of automatic doors in Henderson that are broken.

e. One thousand people entering Los Angeles International Airport (LAX) are selected at random. Each person is asked to complete a short survey regarding travel. The survey results show 637 carry a frequent-flier card. Is there evidence to suggest the true proportion of travelers entering LAX who carry frequent flier cards is greater than 0.60?

f. The Risdall Advertising Agency reports 65% of all women have purchased perfume within the last three months. Thirty-four women are selected at random. Is it likely more than 20 of these women purchased perfume within the last three months?

g. Representatives from the Occupational Safety and Health Administration inspected several for-profit and Medicare nursing homes for any violations. The resulting data will be used to determine whether there is any evidence to suggest the quality of treatment is different in the two types of nursing homes.

Reference no: EM131747527

Questions Cloud

Discuss incurred and paid salary expenses : the estimated warranty expense when the sale is made in accordance with the matching principle
Public policy and political science : Public Policy and Political Science Senator Marco Rubio of Florida is unsure of his vote on an emotional and controversial issue. Before he votes
Describe the population and the sample in this problem : Seventyfive affected families are selected and their total claims are recorded. Describe the population and the sample in this problem.
Compute the minimum pressure developed by the pump : Manufacturing and Product Development A company that manufactures a centrifugal pump for golf course sprayers would like to rate the pressure (in psi).
Probability or statistics : In each of the following problems, identify the population and the sample, and determine whether the question involves probability or statistics.
Discuss the companys ability to continue as a going concern : Publishing a statement of cash flows for each interim period.b. the company's ability to continue as a going concern
Construct the table of counts for this exercise : Government loans for Canadian students in private career colleges. Construct the 6 × 2 table of counts for this exercise
Psychology and human behavior : Psychology and Human Behavior During each summer, many families spend part of their vacation time at a beach along the East or West Coast.
Find a point estimate for the proportion of all bart riders : Travel and Transportation The San Francisco Bay Area Rapid Transit (BART) system conducted a survey to learn if bikes on board would have any effect on riders.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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