Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Average of daily rainfalls for weekdays and weekends 

1. A sample of n = 9 has a mean of M = 10. One person with a score of X = 2 is removed from sample. What is the value of the new sample mean?

Hint: From the knowledge of n and M get the sum of the scores. Then subtract 2 from this sum and divide by the new n =8.

 2. Does it ever seem to you that the weather is nice during the work week, but lousy on the weekend? Cerveny and Balling (1998) have confirmed that this is not your imagination; pollution accumulating during the work week most probable spoils weekend weather for people on the Atlantic coast. Consider the following hypothetical data showing the daily amount of rainfall for 10 wks throughout the summer.

 

        Rainfall on Weekdays              1.2, 0.6, 0.0, 1.6, 0.8, 2.1, 0.2, 0 .9, 1.1, 1.4

        Rainfall on Weekends               1.5, 2.0, 1.8, 1.5, 2.2 2.4, 0.8, 1.6, 1.2, 1.7 

 

a. work out the average daily rainfall during the week and for the weekends. Hint: Obtain the average of the weekdays' rainfalls and the average of the weekend's rainfalls.

b. Based on the two means, does there appear to be a pattern in the data? Based on part (a) make your conclusion.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918162

Have any Question? 


Related Questions in Statistics and Probability

Lucerne earns a gross income of 5500 per month and applies

Lucerne earns a gross income of $5,500 per month and applies for a mortgage with a monthly PITI of $1,244. Lucerne has other financial obligations totaling $829 per month. (Use the ratio guidelines from your text) What t ...

A real number x is randomly chosen from the interval 010

A real number X is randomly chosen from the interval [0,10], dividing the interval into a left and a right side. Find the probability that the left side is at least four times as big as the right.

You are interested in using linear regression to test

You are interested in using linear regression to test whether drinking a protein shake improves weightlifting performance. From a sample of 200 college students, you estimate a linear regression with WEIGHTLIFT as the de ...

1 explain why the byzantium empire went in a different

1. Explain why the Byzantium Empire went in a different direction from Europe (even though both were Christian) after the breakup of Rome. This will require some examination of historical and geographical influences, jus ...

What tensions emerged in the southwest that threatened to

What tensions emerged in the Southwest that threatened to lead the United States into a war with Mexico? On what grounds did President James K. Polk ask Congress to declare war on Mexico?

Question -after collecting the data a forecaster plans on

Question - After collecting the data, a forecaster plans on initially estimating the following model y = β 0 + i=1 ∑ 8 β i X i + β 9 (X 5 *X 7 ) +e, then dropping all of the X variables that are not significant at the 0. ...

Designing and writing a report on a statistical study of

Designing and Writing a Report on a Statistical Study of Your Own Select a question of your own to investigate using one of the hypothesis tests studied in this class.  Explain why you chose the particular question to in ...

1 what three rules govern the construction of a grouped

1. What three rules govern the construction of a grouped frequency distribution? 2. What is the difference between a histogram and a bar graph? 3. Distinguish among the median, mode, and mean.

1 what geographical and historical factors have led

1. What geographical and historical factors have led Singapore to develop such a particular, and highly valued, local form of the English language? 2. Why are the tiny Spratly Islands such a controversial issue in Southe ...

Let f be a social welfare function satisfying the

Let F be a social welfare function satisfying the independence of irrelevant alternatives property, and let a, b be two distinct alternatives. Let P N and QN be two strict preference profiles satisfying a> Pi b ⇔ a>Q i b ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen