1. Test the null hypothesis that the coefficient of x1 is zero versus the two-sided alternative....

1. Test the null hypothesis that the coefficient of x₁ is zero versus the two-sided alternative. What is t? (report to 2 decimal places)

n = 43

y = 1.6 + 6.4x₁ + 5.7x₂

SE_b1 = 2.9

Can we reject the null hypothesis?

2. Test the null hypothesis that the coefficient of x₁ is zero versus the two-sided alternative. What is t? (report to 2 decimal places)

n = 25

y = 1.6 + 6.4x₁ + 5.7x₂

SE_b1 = 3.3

Can we reject the null hypothesis?

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Answer

t = 2.21

Null hypothesis is rejected at 5% significance level

t = 1.94

Null hypothesis is not rejected at 5% significance level

orchestra answered 1 year ago

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