User Account

All Pages

Construct a 95 confidence interval estimate of the mean

Assignment Help Basic Statistics
Reference no: EM13614862

The personnel director of a large corporation wishes to study absenteeism among clerical workers at the corporation's central office during the year. A random sample of 25 clerical workers reveals the following:

• Absenteeism: X bar = 9.7 days, S = 4.0 days

• 12 clerical workers were absent more than 10 days.

a) Construct a 95% confidence interval estimate of the mean number of absences for clerical workers during the year.

b) Construct a 95% confidence interval estimate of the population proportion of clerical workers absent more than 10 days during the year.

Reference no: EM13614862

Questions Cloud

You need to test the alternative hypothesis that an average : you need to test the alternative hypothesis that an average is greater than 70. if the population average is 70 and
The conducting path between the right hand and the left : the conducting path between the right hand and the left hand can be modeled as a 12 cm-diameter 180cm-long cylinder.
State the appropiate null and alternative hypothesis verify : do students who learned english as well as another language simultaneously score worse on the sat critical reading exam
The cash account and the december bank statement of : a. linetech companys bank statement showed an endingbalance of 8000. items appearing in the bank reconciliationincluded
Construct a 95 confidence interval estimate of the mean : the personnel director of a large corporation wishes to study absenteeism among clerical workers at the corporations
A 22mm -diameter glass bead is positively charged the : a 2.2mm -diameter glass bead is positively charged. the potential difference between a point 2.3mm from the bead and a
List the conditions under which a gaussian distribution can : list the conditions under which a gaussian distribution can be used to approximate a poisson probability
Calculate the magnitude of the charge on the plates if the : a parallel-plate capacitor filled with air has plates of area 6.6times10?3m2 and a separation of 0.39mm .1. find the
Find the normal force on the car to the highway surface as : a 1210-kg car and a 2240-kg pickup truck approach a curve on the expressway that has a radius of 281m. for the angle i

Reviews

Write a Review

Basic Statistics Questions & Answers

  What type of data to obtain from rating scale

What type of data would you obtain from a rating scale? Prove an application/example in your response of how this instrument could be used. For what population would you use a graphical rating scale?

  Chi-square test for independence of attributes

At a large commercial bakery, one of the measures familiar with evaluate employees is the number of broken cookies per 1000 produced.  The quality control department wants to determine if there is a relationship between years of experience and bro..

  Use chebyshev-s theorem-empirical rule to solve problem

According to Chebyshev's Theorem, how many students scored between 57 and 93? Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 57 and 93?

  Classes are uniformly distributed

A statistics professor planed her classes so carefully that the lengths of her classes are uniformly distributed between 45 and 55 minutes. Find the probability that a given class period runs greater than 50.25 minutes.

  Gender distribution for basketball

Test whether the gender distribution for basketball fans is significant different from general college by proportion test.

  Use these data to test the null hypothesis of no

question a researcher is interested in differences in the use of sick days by younger and older adults working for a

  Find mean and standard deviation of proportions

What are the mean and standard deviation of the proportions of random samples of 400 motorcylce owners who own Harleys?

  Quasi-experimental experiment design

A psychology professor is interested in whether implementing weekly quizzes improves student learning. She decides to use the weekly quizzes in one section of her introductory psychology class and not to use them in another section of the same cou..

  Find the probability that families run their vacuum cleaners

Please show work and provide excel formulas for plots so that I can understand how to do the assignment. The density function of a continuous random variable X, the total number of hours, in units of 100 hours, that a family runs a vacuum cleaner ove..

  Mutual funds minimize risk by diversifying investments

Can we infer from these data that there is a positive linear relationship between the value of the fund and the price of gold - Mutual funds minimize risk by diversifying investments they make.

  Given that 10 if all people are left-handed what is the

given that 10 if all people are left-handed what is the mean and variance for this random

  Street performer approaches to make a bet

A street performer approaches you to make a bet. He shows you three cards: one that is blue on both sides, one that is orange on both sides, and one that is blue on one side and orange on the other.

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