Calculate the Average Mean Temperature, Basic Statistics

Assignment Help:
The following are actual data showing the latitude of a sample of major cities in the northern hemisphere and their mean high annual temperature.

latitude(X) mean high temp(Y)
1. Acapulco 17 88
2. Algiers 37 76
3. Berlin 53 55
4. Bogota 5 66
5. Montreal 46 50
6. Oslo 60 50
7. Rome 42 71
8. Saigon* 11 90
* Now known as Ho Chi Minh City.


(a) Compute and write the prediction regression equation (note: do not just refer to spss output—write out the full equations)
(i) In unstandardized form (For every increase in ___, x goes up by ____)
(ii) In standardized form (units)

(b) Calculate the predicted mean temperature (degrees F) for each city.

(c) Test the b1 coefficient; Calculate and test R2
Report results of these tests in a short APA results-style paragraph

(d) Plot Y (vertical axis) vs. X (horizontal axis) showing best fitting straight line

(e) Report standard measures of leverage (X space), studentized deleted residuals (Y space), and SDFFITS (influence) for each city.

(f) Examine your plots. Consider your expectations, the obtained values of r and b1, the plots, and your outlier statistics. Do any of the cities appear to be having a particularly strong influence on the results? If so, which one(s) and why?

(g) Drop the point(s) identified in (f) from the data analysis and using SPSS re-compute r and b1. Test the new b1 coefficient; Calculate and test the new R2. Report the results of these tests in a short APA results-style paragraph, and describe how do the results change?

(h) In general, are you justified in dropping data? When is it appropriate vs. inappropriate? Comment on why this procedure of dropping one or more cities may or may not be appropriate in the present case (Hint: consider the altitudes—not latitudes-- of the cities).

Related Discussions:- Calculate the Average Mean Temperature

Semi average trend values, Year : 2008 2009 2010 2011 2012 2013 sale : 111 ...

Year : 2008 2009 2010 2011 2012 2013 sale : 111 120 114 123 117 126

Identify interaction between estimators and jobs, Q1.(i) The logistics depa...

Q1.(i) The logistics department of a large firm employs three "estimators" whose job it is to decide the likely cost of delivering their products to their customers.  This enables

Calculate - mean, how to calculate mean, median and the range on the follow...

how to calculate mean, median and the range on the following data: 15 18 23 22 21 18 14 20 25 12

Calculate the lower and upper control limits, Question: Data entry cler...

Question: Data entry clerks at ARCO key in thousands of insurance records each day.  They have just completed a new training program and want to establish a control chart based

Why Agency code is useful, Why Agency code is useful The four personality n...

Why Agency code is useful The four personality number code allocated by the Workplace of Economical Control to select the unique business models of condition. Organization requirem

Statistics help, Ask question #Minimum 100 words accepteWhen all factors ar...

Ask question #Minimum 100 words accepteWhen all factors are taken into account, an insurance company estimates that the probability of my father making a claim for damages to his p

Application of statistics, Mention the characteristics of Statistics. Expla...

Mention the characteristics of Statistics. Explain any two applications of Statistics

Minitab run a multiple linear regression, Have Minitab run a multiple linea...

Have Minitab run a multiple linear regression to predict the margin of victory using the four predictors (home team record, away team record, stat1diff, stat2diff). Store the resi

Write Your Message!

Captcha
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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd