When making a statistical inference about the mean of a normally distributed population based on a sample drawn from that population, which of the following statements is correct, all else being equal?

the 68% confidence interval is wider than the 90% confidence interval.
the 90% confidence interval is narrower than the 95% confidence interval.
the 90% confidence interval is wider than the 99% confidence interval.
the 99% confidence interval is narrower than the 68% confidence interval

When you dilate a figure with a scale factor of 1/2, what will the dilated figure look like?                                                                                           a: the dilated figure will have side lengths that are half the length of the original side lengths.                                                                          b: the angles in the dilated figure will be half the measure of the original figure.                                                                                c: the dilated figure will have side lengths twice the length of the original.