In a psychological experiment investigating how individuals change their assessments ofprobability in the light of data, subjects have to indicate their probabilities for certain events bymoving a pointer on a scale between 0 and 1. Consider a subject who is unable to give anyworthwhile assessment of a particular probability, and decides to place the pointer randomly,with each point in (0, 1) equally likely to be the point chosen. In such a case, what is theprobability that the ratio of the resulting shorter segment to the longer segment is less than ?

Given that the probability is randomly selected, we can assume that the probability of selecting any…

Answered: In a psychological experiment…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Suppose that for Americans in the age group 18-24 years, sixty-eight percent had private health insurance. In the age group 25-34 years, the percentage is seventy-five. If we select a random sample of 273 Americans from the 18-24 age group and an independent random sample of 247 Americans from the age group 25-34, then the probability that the difference in percent of private health insurances is between -6% and 6% between the two groups is approximately: d. 0.6005 c. 0 a. 0.3995 b. 0.0019 e. 0.419
In a psychological experiment investigating how individuals change their assessments of probability in the light of data, subjects have to indicate their probabilities for certain events by moving a pointer on a scale between 0 and 1. Consider a subject who is unable to give any worthwhile assessment of a particular probability, and decides to place the pointer randomly, with each point in (0,1) equally likely to be the point chosen. In such a case, what is the probability that the ratio of the resulting shorter segment to the longer segment is less than 1?
The Food Marketing Institute shows that 17% of households spend more than $100 per week on groceries. Assume the population proportion is p = .17 and a simple random sample of 800 households will be selected from the population. What is the random variable in this narrative?
Aiyana has purchased the life insurance policy for her snake for the price of $100 per year and Aiyana will receive $5000 in case if her snake passes away. The insurance company estimated the probability of her snake passing away during the length of the policy to be 0.2%. Let XX be the insurance company's profit. Answer the following questions: 1. Create the probability distribution table for XX : XX outcome profit xx ,$ P(X=x)P(X=x) snake passes away snake survives 2. Use the probability distribution table to find the following: E[X]=μX=E[X]=μX= dollars. (Round the answer to 1 decimal place.) SD[X]=σX=SD[X]=σX= dollars. (Round the answer to 1 decimal place.)
The proportion of individuals insured by a certain company who received at least one traffic ticket during a five-year period is 0.15. If a sample of 150 individuals insured by the company is taken, approximately what z-score would be used to find the probability that the sample proportion will be less than 0.13? O A. -0.68493 O B. -0.68966 O C. -0.68599 O D. -0.66667 O E. -0.68611
In deciding how many customer service representatives to hire and in planning their schedules, it is important for a firm marketing electronic typewriters to study repair times for the machines. Such a study revealed that repair times have approximately an exponential distribution with a mean of 42 minutes. Find the probability that a repair time will last less than 17 minutes.
In a laboratory statistics class, Anne performed a random experiment to discussthe probability of an event. She rolled an unbiased die r times. Determine the following: a. The probability of obtaining one 6.b. The probability of obtaining no 6.c. The number of trials needed for the probability of at least one 6 to be ≥ 1/2
Suppose we are interested in the relationship between an individual's brown hair and skin color. Based on a random sample of LIU students, we have the following joint probability distribution given by: X-degree of brown hair color 2 3 4 0.12 0.01 0.05 0.07 0.07 0.12 0.09 0.16 Y- degree of skin color 2 0.12 3 0.16 | 0.03 The probability that an individual with degree of brown hair 2 has a degree of skin color 1 is: None of these 0.263 0.167 0.3
Given the new fad of health consciousness, a random sample of 400 college students was asked what their preferred type of drink was and whether they took regular or sugar free. The following table gives a two-way classification of the responses. Regular Sugar free TOTALS Juice 210 95 305 Iced Coffee 75 20 95 TOTALS 285 115 400 (a) If one student is selected at random from these 400 students, find the probability that this student (i) Prefers sugar free drinks (ii) Prefers juice (iii) Prefers regular juice (iv) Prefers juice given that it is a sugar free drink. (v) Prefers iced coffee or that drinks must be sugar free. (b) Are the events 'prefers juice' and 'prefers sugar free drinks' independent? Use probabilities to state your answer.
Please help me determine what the probability was that it was a boy is
Nicole has purchased the life insurance policy for her fish for the price of $200 per year and Nicole will receive $4000 in case if her fish passes away. The insurance company estimated the probability of her fish passing away during the length of the policy to be 0.5%. Let XX be the insurance company's profit. Answer the following questions: 1. Create the probability distribution table for XX : XX outcome profit xx ,$ P(X=x)P(X=x) fish passes away fish survives 2. Use the probability distribution table to find the following: E[X]=μX=E[X]=μX= dollars. (Round the answer to 1 decimal place.) SD[X]=σX=SD[X]=σX= dollars. (Round the answer to 1 decimal place.)
(first part of question is attached) (e) What is the probability that the sample proportion of students of adults living with parents or other relatives is higher than 0.3? (f) What is the probability that the sample proportion of adults living alone is between 0.1 and 0.15?

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