User Account

All Pages

Probability-population and sample

Assignment Help Basic Statistics
Reference no: EM13102322

Question: There are 40 English students enrolled. The teacher questioned 5 students who always sit in the back of the classroom. Three of the 5 said "yes" when asked if they would like "A Tale of Two Cities" as the next class reading assignment.

a. Identify the population and the sample in this situation.

b. Is this likely to be a representative sample? If not, why not?

Reference no: EM13102322

Questions Cloud

Analyze grint-s useful to study constitutive approaches : Analyze Grint's support for why it is useful to study Constitutive/Social Constructivist approaches to leadership and give critical assessment of why case he presents is compelling or not.
Relation between mortality from cirrhosis : Perform a significance test to assess whether there is an association between mortality from cirrhosis of the liver and duration of employment in the group hired after 1945. Report a p-value.
Finding probabilities with binomial distribution : A regional manager visits local fast-food franchises and evaluates the speed of the service. If the manager receives her meal within 45 seconds, the server is given a free movie-admission coupon.
Find the value of m : The end point of a spring vibrates with a period of 1.9 seconds when a mass m is attached to it. When this mass is increased by 9.630×101 kg, the period is found to be 4.1 seconds. Find the value of m.
Probability-population and sample : There are 40 English students enrolled. The teacher questioned 5 students who always sit in the back of the classroom. Three of the 5 said "yes" when asked if they would like "A Tale of Two Cities" as the next class reading assignment.
Probability that fifth fish caught is the first young fish : When a fisherman catches a fish, it is a young one with a probability of 0.23 and is returned to the water. On the other hand, an adult fish is kept to be eaten later.
Normal distributions-z scores and probabilities : A continuous random variable, x, is normally distributed with a mean of $1000 and a standard deviation of $100. Convert each of the following x values into its corresponding z-score.
Explain human behavior deviant in one society : When the crime is committed by someone who has powerful status in this society, how is their deviant behavior tackled in comparison to someone who has less power in society?
Worldwide transfer of knowledge and innovation : Do you believe it is possible for a global industry to simultaneously achieve the goals of global efficiency and integration, national responsiveness and flexibility and the worldwide transfer of knowledge and innovation?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Perform prediction-multiple regression model

A medical researcher found a significant relationship among a person's age x1, cholesterol level x2, sodium level of the blood x3, and systolic blood pressure y.

  Significant diference in mean times

One particular morning, the length of time spent in the examination room is recorded for each patient seen by each physician at an orthopedic clinic. Does the data prove a significant diference in mean times, using a=.05 Minutes in Examination roo..

  Determining analysis and null-alternate hypothesis

Determine what analysis would you do on each problem (i.e., one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?

  Determining mean of probability distribution

Determine the mean and standard deviation of following probability distribution.

  Find out the mean annual family medical expenses

A survey is planned to determine the mean annual family medical expenses of employees of a large company. The management of the company wishes to be 95% confident that the sample mean is correct to within plus-or-minus $50 of the population mean.

  Estimating probability based on the discrete distribution

The casino game craps is based on rolling two dice. Here is the assignment of probabilities to the sum of numbers on the up face when two dice are rolled:

  Standard deviation of the total luggage weight

If there are 12 business-class passengers and 50 tourist-class passengers on a particular flight, what are the expected value of total luggage weight and the standard deviation of the total luggage weight?

  Solving question using normal distribution having mean

Normal distribution has mean of 80 and standard deviation of 14. Find out the value above which 80 percent of values will occur.

  Decision making-expected monetary value

Using the EMV criteria (you wish to maximize expected profits in this case) determine what course of action that Optel should take. Make sure to state the best strategy in words.

  Problem related to average running time of movies

Nancy believes that the average running time of movies is equal to 140 minutes. A sample of 4 movies was taken and the following running times were obtained. Assume the population of the running times is normally distributed.

  Mean age of the population

Can we conclude that the mean age of the population from which the sample may be presumed to have been drawn is less than 60 years? Let α = .05

  Scores from the law school admission test

Scores are obtained from the Law School Admission Test (LSAT) are normally distributed with a mean score of 550 and a standard deviation of 110.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd