Ask Question, Ask an Expert


Ask Statistics and Probability Expert

Hypothesis testing and Confidence interval for mean using t distribution.

A hospital manager is concerned about absenteeism in its clinics.  To try to decrease absence, it provides workers in Clinic A financial incentive for good attendance.  No such incentive is provided in Clinic B, which has historically had almost identical absence rates to that of Clinic A.



Clinic A

Clinic B

Mean Days absent

12.3 days

18.7 days

Standard Deviation

4.4 days

5.1 days

Number of Employees




1. find out separate confidence intervals for the numbers of days absent for Clinic A and Clinic B, respectively.
2. The Health Authority is worried that if the mean days absent in either clinic reach 20 days, it will have difficulties safely operating the clinics. Conduct divides hypothesis tests for Clinics A and B (at 95% confidence) that demonstrate whether they can be confident that absence is less than 20 days.
3. Conduct a statistical test at the 5 percent level of significance to determine if the days of absence at the two clinics are significantly different from one another.  Based on the sample evidence, do you think the incentive should be offered to other branches?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922224

Have any Question? 

Related Questions in Statistics and Probability

Activity first digit phenomenona descriptive statistical

Activity: First Digit Phenomenon A Descriptive Statistical Discovery Instruction Sheet Introduction: Statisticians divide their subject into two major branches. Descriptive Statistics: Based on the concepts and methods n ...

1 what is an interaction2 how many interactions can be

1. What is an interaction? 2. How many interactions can be tested in a 2 x 2 design? In a 3 x 3 design? In a 2 x 2 x 3 design? 3. Why do researchers use expericorr designs?

An airplane manufacturer currently produces six models of

An airplane manufacturer currently produces six models of airplanes for commercial sale. the airline that lauren works for is rapidly expanding and would like to purchase three airplanes of different models to service va ...

Consider the following game a fair die is rolled if the

Consider the following game. A fair die is rolled. If the outcome is 4, then the game ends and you win 0. If the outcome is not 4, then you have the option of either stopping the game and receiving an amount equal to tha ...

Suppose that a certain college class contains 42 students

Suppose that a certain college class contains 42 students. Of these, 23 are freshmen, 28 are history majors, and 8 are neither. A student is selected at random from the class. (a) What is the probability that the student ...

1 how do mixed expericorr designs differ from other

1. How do mixed/ expericorr designs differ from other experimental designs? 2. Distinguish between an independent variable and a subject variable.

In retrospect how might the united states under the truman

In retrospect, how might the United States under the Truman administration have handled the situation differently? How would you characterize the current situation and how might our relationship with the largest survivor ...

What is the variation in lsquofalse rejects that is not

What is the variation in ‘False rejects' that is NOT attributable to the Inspectors (as Sum of squares, not as percentage or mean)? 349.4 84.9 264.5 10.58 21.2

Assume that population means are to be estimated from the

Assume that population means are to be estimated from the samples described. Use the sample results to approximate the margin of error and 95% confidence interval. Sample size equals=6464, sample mean equals=8282, sample ...

For this assignment you will continue to use data derived

For this assignment you will continue to use data derived from Capital Bikeshare trip records from 2011 and 2012, this time analysing patterns in daily numbers of rentals by casual users. References and Data Sources: Bac ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro