Answer
Yes, the evidence suggest that the volume of Google stock has changed since 2007.
Work Step by Step
Here we have $H_{o}$: μ =5.44, $H_{1}: μ \ne 5.44$, n = 35, x̅ = 3.28, s = 1.68 and α = 0.05
Using Classical approach:
Using Table VI, we have: t = +/- 2.032
Since this is a two-tailed test, the rejection region will be values smaller than -2.032 and greater than 2.032.
$σ_{ x̅} = \frac{s}{\sqrt n} = \frac{1.68}{\sqrt 35} = 0.284$
$t = \frac{3.28 - 5.44}{0.284} = -7.606$
Since, -7.606 < -2.032, we reject the Null hypothesis.
