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Question 13 10 pts In a fluorescence spectrometer standard aqueous solutions of the fluorescent dye fluorescein are examined

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Answer #1

The statistical software output for this problem is:

Simple linear regression results:
Dependent Variable: Fluorescence
Independent Variable: Concentration

Regression Statistics
Multiple R 0.999458
R Square 0.998916
Adjusted R Square 0.998644
Standard Error 0.274187
Observations 6

Parameter estimates:

Coefficients Standard Error t Stat P-value Lower 95% Upper 95%
Intercept 1.01 0.255254 3.956838 0.016722 0.3013 1.7187
0 1.989286 0.032772 60.70146 4.41E-07 1.898297 2.080274

Analysis of variance table for regression model:

df SS MS F Significance F
Regression 1 277.008 277.008 3684.667 4.41E-07
Residual 4 0.300714 0.075179
Total 5 277.3088

Hence,

The linear equation is

y = 1.93 x + 1.52

y-intercept

x= 0

y = 1.52 +- 0.35

Therefore,

Option A is correct

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