User Account

All Pages

Estimate for the proportion of all multiple-choice questions

Assignment Help Basic Statistics
Reference no: EM132391494

Multiple Choice Strategy: Some students have suggested that if you have to guess on a multiple-choice question, you should always choose C. Carl, the student, wants to investigate this theory. He is able to get a sample of past tests and quizzes from various teachers. In this sample there are 110 multiple-choice questions with four options (A, B, C, D). The distribution of correct answers from this sample is given in the frequency table below.

Correct Answer FrequencyA21B25C42D22

(a) If the correct answers for all multiple-choice problems are uniformly distributed across the four options (A, B, C, D), what is the theoretical proportion of those which should have the answer C? Express your answer as an exact decimal, not a percentage.

(b) Based on the sample that Carl collected, what is the point estimate for the proportion of all multiple-choice questions with a correct answer of C? Round your answer to 3 decimal places.

(c) Construct the 99% confidence interval for the proportion of all multiple-choice questions with a correct answer of C? Round your answers to 3 decimal places.

 < p < 

(d) Can Carl be 99% confident that the correct answer of C shows up more frequently than the theoretical value found in part (a) would suggest?

No, because 0.25 is within the confidence interval limits.

Yes, because 0.25 is below the lower limit of the confidence interval.     

No, because 0.25 is below the lower limit of the confidence interval.

Yes, because 0.25 is within the confidence interval limits.

Reference no: EM132391494

Questions Cloud

Scheduling resources and costs : "Scheduling Resources and Costs" of Project Management: The Managerial Process, using Microsoft® Project 2016.
What is the point estimate for the mean : What is the point estimate for the mean nightly hours of sleep for all college students?
Determine which unit to commit first and at what load the : Given a thermal power plant having two (2) units (generators). The fuel input in MBtu per hour for each unit is given by. Determine which unit to commit first and at what load the remaining unit should be committed.  Assume no “start-up” cost for eit..
What is the point estimate for the proportion : What is the point estimate for the proportion of all of Carl's corn that has worms? Round your answer to 3 decimal places.
Estimate for the proportion of all multiple-choice questions : Based on the sample that Carl collected, what is the point estimate for the proportion of all multiple-choice questions with a correct answer of C?
Balancing function and fashion : Discuss strategies to ensure integrated, coordinated error messages that are consistent across an application.
Quality of service : Evaluate importance quality of service has to designers. Choose two areas discussed in the textbook you would focus your attention to ensure quality of service
How many sequences of five things : How many sequences of five things can be made from 8 different things with replacement and order is important
Recently number of employees have received calls : Your boss mentions that recently a number of employees have received calls from individuals who didn't identify themselves and asked a lot of questions

Reviews

Write a Review

Basic Statistics Questions & Answers

  In what class interval must the median lie

What percentage of the checkout times was at least 3 minutes? In what class interval must the median lie? Explain your answer.

  Create a c-bar chart

Answer to a problem based on statistical graphics.Create a c-bar chart and determine if corrective action is needed.

  A student prepares for an exam by studying a list of 10

a student prepares for an exam by studying a list of 10 problems. she can solve 7 of them. for the exam the instructor

  Question suppose that you observe the following service

question suppose that you observe the following service times in minutes by a bank teller 1 2 1 7 2 4.a. what is the

  Right-recursion to transform a repeated sequence of symbols

As discussed in Section 4.3, the algorithm in Figure 4.4 could use left or right-recursion to transform a repeated sequence of symbols into standard grammar form.

  Determine population from which the sample data select

Based on the sample data in the following frequency distribution, conduct a test to determine whether the population from which the sample data were selected.

  Finally he brought 4 shirts and 2 sports coats and paid

mike took clothes to the cleaners three times last month. first he brought 2 shirts and 1 pair of slacks and paid 7.47.

  A multiple regression line was calculated in which x1 was a

a multiple regression line was calculated in which x1 was a students grade point average and x2 was a students age. the

  What is meant by the term repeatable error

1. What is meant by the term repeatable error? 2. What is meant by the term lrue king error?

  The personnel officer selects two applicants at random to

five applicants apply for two jobs. applicants a and b are male applicants c d and e are female. the personnel officer

  Why is this especially important for contemporary business

Lim Siong Guan in Singapore has extolled the need to 'engage your people to harness their creativity'.

  What is the expected number of times that the target

What is the expected number of times that the target will be hit?

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