Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

1. A student was asked to evaluate the mean and standard deviation for following sample of n = 5

81, 87, 89, 86, & 87. To simplify arithmetic, the student first subtracted 80 points from each score to obtain the new sample consisting of 1, 7, 9, 6, & 7. The mean and standard deviation for new sample were then evaluated to be M = 6 and s = 3. What are the values of mean M and the standard deviation s for original sample? Hint:What takes place to the mean when you subtract the constant from each observation?

 

2.  There're two different formulas or methods which can be employed to compute SS.

  1. Under what circumstance is the definitional formula easy to use? Hint: Refer to the text
  2. Under what circumstance is the computational formula easy to use? Hint: Refer to the text

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M916825

Have any Question? 


Related Questions in Statistics and Probability

1 what is the minimum reliability coefficient that

1. What is the minimum reliability coefficient that researchers consider acceptable? Why do researchers use this minimum criterion for reliability? 2. For what kind of measure is it appropriate to examine test-retest rel ...

Thirty percent of the time a sale at food shoppe is paid

Thirty percent of the time, a sale at Food Shoppe is paid using a store-issued credit card. A sample of 18 Food Shoppe sales is obtained. Let X represent the number of sales paid for using the store-issued credit card. W ...

Starting in the 10th century movements to reform the church

Starting in the 10th century, movements to reform the church began. Why was the church in need of reform, and what were the consequences of the Gregorian Reforms? How did these reforms change society? 1 and a half page e ...

Putting measurement to workthis exercise gives you the

Putting Measurement to Work This exercise gives you the opportunity to develop a measurement strategy of your own. 1. Identify an area of the social sciences you know something about (aging, marriage and the family, crim ...

Be sure to read each question carefully and answer all

Be sure to read each question carefully and answer all parts. For all Stata questions, be sure to provide the log output (which should be edited and commented so that it is easier to grade).  Q1. Find an article THAT YOU ...

In a prospective study data collected extensive information

In a prospective study, Data collected extensive information on incidence of coronary heart disease (CHD) among smoker and non-smoker individuals. The table below summarizes the results Risk factor Cases of  CHD Non case ...

1 consider the circumstances under which a

1. Consider the circumstances under which a repeated-measures experimental research design, rather than a between-participants experimental design, might be more or less appropriate. 2. Explain what counterbalancing refe ...

An article in archaeometry involved an analysis of 48

An article in Archaeometry involved an analysis of 48 samples of Romano-Britishpottery, found at four different kiln sites in the United Kingdom. The samples were analyzed todetermine their chemical-composition. The perc ...

A cotton grower in south georgia produces cotton on farms

A cotton grower in South Georgia produces cotton on farms in Statesboro and Brooklet, ships it to cotton gins in Claxton and Millen where it is processed, and then sends it to distribution centers in Savannah, Perry, and ...

There are 1000 students in a high school among the 1000

There are 1000 students in a high school. Among the 1000 students, 150 students take AP Statistics, and 300 students take AP French. 100 students take both AP courses. Let S be the event that a randomly selected student ...

  • 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