Find the percentage who reported seeing a ghost

Assignment Help Basic Statistics
Reference no: EM131405687

The Roper Organization (1992) conducted a study as part of a larger survey to ascertain the number of U.S. adults who had experienced phenomena such as seeing a ghost, "feeling as if you left your body," and seeing a UFO. A representative sample of adults (18 and over) in the continental United States were interviewed in their homes during July, August, and September 1991. The results when respondents were asked about seeing a ghost are shown in the following table:

 

Reportedly Has Seen a Ghost

 

Yes

No

Total

Aged 18 to 29

212

1313

1525

Aged 30 or over

465

3912

4377

Total

677

5225

5902

a. In each age group, find the percentage who reported seeing a ghost.

b. What is the relative risk of reportedly seeing a ghost for adults under 30 compared to adults 30 and over? Write your answer in a sentence that could be understood by someone who knows nothing about statistics.

c. Repeat part (b) using increased risk instead of relative risk.

d. What are the odds of reportedly seeing a ghost to not seeing one in the older group?

Reference no: EM131405687

Questions Cloud

Briefly evaluate its international business-level strategy : For the corporation that operates internationally, briefly evaluate its international business-level strategy and international corporate-level strategy and make recommendations for improvement.
Analyze what will happen to your confidence interval : Construct a hypothetical 95% confidence interval for a hypothetical case of your choosing. Use your own unique choice of mean, standard deviation, and sample size to calculate the confidence interval. Select one (1) option provided below and analy..
Calculate the percentage change in price : Using the formula, ((new price - old price)/old price), calculate the percentage change in price. Include a minus sign (-) if the percentage change in price is falling.
Explain various levels and types of strategies firm may use : Analyze the five forces of competition to determine how they impact the company. Discuss the various levels and types of strategies the firm may use to maximize its competitiveness and profitability.
Find the percentage who reported seeing a ghost : In each age group, find the percentage who reported seeing a ghost.- What is the relative risk of reportedly seeing a ghost for adults under 30 compared to adults 30 and over?
What are the economic considerations : What are the economic considerations that exist when a company has to be set up?
Determining the official unemployment rate : On the first Friday of this month, (Feb. 2017), data was released showing that in January 2017 the official unemployment rate had increased from 4.7% in Dec. 2016 to 4.8%. Economists had predicted no change in the unemployment rate.
Write a health and wellness summary : Choose 2 of the 5 profiles and write at least 525 words each in a Health and Wellness Summary for each individual (1,050 words total).In your summary, include the following topics:An initial assessment of the person's health based on the profile ch..
How might a swot analysis be used by an entrepreneur : How might a SWOT analysis be used by an entrepreneur either at the pre-start-up stage or within the actual start-up of the company? Apply this to a company that you would be interested in starting in the future.

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