Calculate the predicted mean temperature, Basic Statistics

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 describehow 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).

Posted Date: 3/1/2013 4:36:58 AM | Location : United States







Related Discussions:- Calculate the predicted mean temperature, Assignment Help, Ask Question on Calculate the predicted mean temperature, Get Answer, Expert's Help, Calculate the predicted mean temperature Discussions

Write discussion on Calculate the predicted mean temperature
Your posts are moderated
Related Questions
A coin was flipped twenty times and landed on heads fifteen times. If the coin was balanced fair what is the probability of a head on the next toss

a ball is projected so as to attain a maximum range. Find the maximum height attained if initial velocity is u

on july 2,ali collected cash of Rs 700 from accounts receivable ,july 9 purchased gym equipments for 2175, paying 5500 in cash and charging the remainder on the company 30 day acco

1. Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 36 tons of coal in each c

Define Average Speed in Various Cases (a) Particles covering different distances in different times say a particle covers s1 distance in time t1 ,s2 in time t2, s3 in time t3 and

variable cost per unit remain constent why

A researcher is interested in comparing tastiness of different parts of cheese in grilled cheese sandwiches.  The researcher expects that Cheddar cheese grilled sandwiches are rate

discuss the considerations to be borne in mind when constructing index numbers

Refund can be defined as return of a part of a purchase price by a seller to a buyer, usually on a purchase of a specified quantity or a value of goods within a specified period.

how to draw the mind map