answer everything for df1.png only.

Explain why the 90% condence interval for the proportion of mothers who gave birth to a low birth weight child {part 5'; above) is smaller than the 99% condence interval given in part I). Explain Why increasing the sample size gives condence intervals tighter estimates of the unknown mean or proportion. The 99% condence interval for the mean weight gain of mothers is (28.7, 33.1). Explain Why this does n_ot imply that 99% of mothers will gain between 28.7 and 33.12 pounds