Confidence Intervals: Slope of Regression Models Practice Test

We are 95% confident that for each additional 100 square feet, the mean selling price in the population increases by between $\$8{,}000 and $\$14{,}000.

Because the interval does not include 0, the correlation between size and price is between 8 and 14.

There is a 95% probability that the selling price of a randomly selected house is between $\$8{,}000 and $\$14{,}000.

We are 95% confident that 95% of houses increase in price by between $\$8{,}000 and $\$14{,}000 when size increases by 100 square feet.

We are 95% confident that the slope of the sample regression line will be between 8 and 14 for these same 30 houses if we recompute it.