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

Profit margin (return on sales), Hugh Snore Bedding, Inc. has assets of $40...

Hugh Snore Bedding, Inc. has assets of $400,000 and turns over its assets 1.5 times per year. Return on assets is 12%. What is its profit margin (return on sales)?

What is a basis point?, What is a basis point? A base factor is a hundre...

What is a basis point? A base factor is a hundredth (1/100) of an amount factor. Indicated another way, one amount factor is equal to 100 base factors. This means that if an amo

Case study, A survey was conducted among the residents of Pune City, its su...

A survey was conducted among the residents of Pune City, its suburbs and the PuneCantonment area. The following three pie diagrams show their respective preferences for living in C

Permutation and combination, How many different starting lineups of 5 baske...

How many different starting lineups of 5 basketball players can be chosen from a squad of 13 players?

Time series, what are the characteristics

what are the characteristics

Corlation, 1. Calculate Karl Pearson’s coefficient of correlation between e...

1. Calculate Karl Pearson’s coefficient of correlation between expenditure on advertising (X) and sales (Y) from the data given below: The management decided to stop further expens

GENERAL ENTRY PROBLEM, could you please tell meaning of credit and debit no...

could you please tell meaning of credit and debit notes in terms of intercompany transactions.

Simulation for structural equation modeling, I want to simulate observed va...

I want to simulate observed variables for structural equation modeling. In real data it is assumed that observed variables are not error free variables, so should i also simulate e

Historigram, difference between historigram and histogram

difference between historigram and histogram

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