You are testing the null hypothesis that there is no linear relationship between two​ variables, X and Y. From your sample of n=18, you determine that b1=5.2 and Sb1=1.2. a. What is the value of tSTAT​? b. At the α=0.05 level of​ significance, what are the critical​ values?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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You are testing the null hypothesis that there is no linear relationship between two​ variables, X and Y. From your sample of
n=18,
you determine that
b1=5.2
and
Sb1=1.2.
a. What is the value of
tSTAT​?
b. At the
α=0.05
level of​ significance, what are the critical​ values?
c. Based on your answers to​ (a) and​ (b), what statistical decision should you​ make?
d. Construct a​ 95% confidence interval estimate of the population​ slope,
β1.
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