30. In a popular major league baseball stadium, historically 65% of the patrons say hotdogs are their favorite ballpark snack. Recently, during a baseball game in the summertime, with the stadium filled to its 50,000 seat capacity, 1,000 patrons are randomly selected to survey their refreshment preferences. The survey reveals that 525 of the surveyed patrons say hotdogs are their favorite ballpark snack. With 95% confidence, what can you conclude about the hotdog preferences of the ballpark patrons

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

I’m really confused and need to learn this

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to