Purchase Solution

Mulyiple choice questions and machine breakdowns

Not what you're looking for?

Ask Custom Question

(1) There are 20 questions in a multiple choice test. Each question has five choices and one correct answer of these five choices. A student did not study. He/she answers the questions at random. What are the probability that he/she makes...more than 10 answers right?exactly eight right?at most 7 right?

(2)A can company reports that the number of machine breakdown in an eight hour shift has a mean of 1.5. Find the probability that there will...exactly 2 breakdowns? Fewer than 2 breakdowns? no breakdowns in 3 consecutive shift?

Purchase this Solution
Solution Summary

The solution calculates the number of machine breakdowns and the probability of getting a certain number of multiple choice questions right.

Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

View More Free Quizzes
Related BrainMass Solutions

  • alternative to the current operations approach

    Machine reliability will go up substantially with preventive maintenance. If preventive maintenance is planned, and implemented efficiently, there will be no breakdowns.

  • Simulation of machine breakdown

    Conduct a 25-week simulation of the weekly number of machine breakdowns. Use the Table of Random Numbers that is provided with this exam. Start in the upper right-hand corner of the table and proceed across the top row from right to left. c.

  • ANOVA Analysis

    Interpretation of results As we can see, the mean number of hours between breakdowns for machine 1(7.1), machine 2(9.1), machine 3 (9.9) and machine 4 (11.4) are all different. But are these differences statistically significant?

  • Probability Distribution and Poisson Distribution

    194505 Probability Distribution and Poisson Distribution 1. A can company reports that there were 3 breakdowns on its machine operator assembly line in the last thirty days.

  • Poisson and exponential distributions

    Assuming that the maintenance department's claim is true, find the probability that the time between successive breakdowns is between 100 hours and 300 hours f. Suppose that the machine breaks down five hours after its most recent breakdown.

  • Chi-square test and number of breakdowns

    The chi-square test and number of breakdowns are examined.

  • Statistical Analysis of Simulation Results

    To develop this model, they first needed to know the time between breakdowns. According to their estimate, the time between breakdowns is between 0 and 8 weeks, with the probability increasing the longer the machine went without breaking down.

  • Simulation

    Excel file contains simulation of the machine breakdowns repair time for 20 week calculation of average repair time per week and average weekly breakdown cost.

  • Dynaco Manufacturing Company: Monte carlo simulation

    Simulate the machine breakdowns per week for 20 weeks. B. Compute the average number of machines that will break down per week. Please show the mathematical work for each problem. Please see attached file.

View More Related Solutions