pMINITAB - Regression
Analysis: FluDeaths1 vs FluCases0
pThe regression equation
is
pFluDeaths1 = 49.3 + 0.0722
FluCases0
p
pPredictor Coef SE Coef T P
pConstant 49.29 29.85 1.65
0.121
pFluCases 0.072222 0.008741 8.26
0.000
p
pS = 85.07 R-Sq = 83.0% R-Sq(adj) = 81.8%
p
pNumber
of observation pairs =16 è df = n – 2
= 14
pFor a
95% CI under a t distribution with df 14, we use t* =
2.145.
p
pm = t*SEb = 2.131 * 0.008741 ≈ 0.0187
p95%
CI for the slope b
is: b ±
t*SEb = 0.0722 ± 0.0187 ≈ 5.4% to
9.1%
p
pWe are 95% confident that somewhere between
5.4% and 9.1%
of the people
diagnosed one week with the flu died of its
complications the next
week during the 1918 epidemic.