Essential Statistics for the Behavioral Sciences
2nd Edition
ISBN: 9781506386300
Author: Gregory J. Privitera
Publisher: SAGE Publications, Inc
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Chapter 4, Problem 26CAP
To determine
To calculate:
The sum of squares
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Could you please answer this question using excel.Thanks
Questions
An insurance company's cumulative incurred claims for the last 5 accident years are given
in the following table:
Development Year
Accident Year 0
2018
1 2 3 4
245 267 274 289 292
2019
255 276 288 294
2020
265 283 292
2021
263 278
2022
271
It can be assumed that claims are fully run off after 4 years. The premiums received for
each year are:
Accident Year Premium
2018
306
2019
312
2020
318
2021
326
2022
330
You do not need to make any allowance for inflation.
1. (a) Calculate the reserve at the end of 2022 using the basic chain ladder method.
(b) Calculate the reserve at the end of 2022 using the Bornhuetter-Ferguson method.
2. Comment on the differences in the reserves produced by the methods in Part 1.
Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate
it again, letting Row 2 represent the x-values and Row 1 the y-values. What effect does switching the variables have
on r?
Row 1
Row 2
13
149
25
36
41
60
62
78
S
205
122
195
173
133
197
24
Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values.
r=0.164 (Round to three decimal places as needed.)
S
24
Chapter 4 Solutions
Essential Statistics for the Behavioral Sciences
Ch. 4 - Prob. 1FPCh. 4 - Prob. 2FPCh. 4 - Prob. 3FPCh. 4 - Prob. 4FPCh. 4 - Prob. 5FPCh. 4 - Prob. 6FPCh. 4 - Prob. 7FPCh. 4 - Prob. 8FPCh. 4 - Prob. 9FPCh. 4 - Prob. 10FP
Ch. 4 - Prob. 11CAPCh. 4 - Prob. 12CAPCh. 4 - Prob. 13CAPCh. 4 - Prob. 14CAPCh. 4 - Prob. 15CAPCh. 4 - Prob. 16CAPCh. 4 - Prob. 17CAPCh. 4 - Prob. 18CAPCh. 4 - Prob. 19CAPCh. 4 - Prob. 20CAPCh. 4 - Prob. 21CAPCh. 4 - Prob. 22CAPCh. 4 - Prob. 23CAPCh. 4 - Prob. 24CAPCh. 4 - Prob. 25CAPCh. 4 - Prob. 26CAPCh. 4 - Prob. 27CAPCh. 4 - Prob. 28CAPCh. 4 - Prob. 29PRCh. 4 - Prob. 30PRCh. 4 - Prob. 31PRCh. 4 - Prob. 32PR
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