A paper described a study that examined whether stress accelerates aging at a cellular level. The accompanying data on a measure of perceived stress (x) and telomere length (y) were read from a scatterplot that appeared in the paper. Telomere length is a measure of cell longevity. Perceivedstress Telomerelength Perceivedstress Telomerelength 5 1.06 20 2.1 6 1.1 20 1.14 6 1.18 20 0.98 7 1.02 21 1.14 10 1.9 21 2.14 11 1.46 21 1.66 12 1.02 22 1.78 13 1.58 22 2.26 14 1.3 22 0.9 14 0.94 23 2.42 15 1.98 24 1.1 15 1.62 24 1.66 15 1.7 25 2.14 17 1.14 26 1.26 17 1.06 27 1.98 17 1.78 27 2.34 18 1.38 28 1.34 18 1.62 29 2.22 19 1.94 33 0.94 (a) Compute the equation of the least-squares line. (Round your answer to four decimal places.) = (b) What is the value ofr 2? (Round your answer to four decimal places.)

A paper described a study that examined whether stress accelerates aging at a cellular level. The accompanying data on a measure of perceived stress ( x ) and telomere length ( y ) were read from a...

A paper described a study that examined whether stress accelerates aging at a cellular level. The accompanying data on a measure of perceived stress (x) and telomere length (y) were read from a scatterplot that appeared in the paper. Telomere length is a measure of cell longevity.

Perceived stress	Telomere length	Perceived stress	Telomere length
5	1.06	20	2.1
6	1.1	20	1.14
6	1.18	20	0.98
7	1.02	21	1.14
10	1.9	21	2.14
11	1.46	21	1.66
12	1.02	22	1.78
13	1.58	22	2.26
14	1.3	22	0.9
14	0.94	23	2.42
15	1.98	24	1.1
15	1.62	24	1.66
15	1.7	25	2.14
17	1.14	26	1.26
17	1.06	27	1.98
17	1.78	27	2.34
18	1.38	28	1.34
18	1.62	29	2.22
19	1.94	33	0.94

(a) Compute the equation of the least-squares line. (Round your answer to four decimal places.)
=

(b) What is the value ofr
²? (Round your answer to four decimal places.)

Jun 10, 2022

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A paper described a study that examined whether stress accelerates aging at a cellular level. The accompanying data on a measure of perceived stress ( x ) and telomere length ( y ) were read from a...

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