Using the "ice cream demand" table from questions $1-5$ above, use a linear trend analysis approach to estimate ice cream demand $($in pints$)$ for the following time periods using alpha $=0\mathrm{.}10$ for statistical significance:

$8.(4$ points$)$ Estimated demand for time period $7$:

$9.(4$ points$)$ Estimated demand for time period $8$:

$10.(4$ points$)$ Estimated demand for time period $9$: