According to national data on the sleeping habits of adults, the amount of sleep per night of all U.S. adults follows a normal distribution with a mean of 7.25 hours and a standard deviation of 1.25...

Extracted text: According to national data on the sleeping habits of adults, the amount of sleep per night of all U.S. adults follows a normal distribution with a mean of 7.25 hours and a standard deviation of 1.25 hours. A study surveyed a random sample of 400 U.S. adults and found that their average amount of sleep per night was 7.14 hours with a sample standard deviation of 1.36 hours. Fill in the blank below with the appropriate number corresponding to the provided symbol. n =


Extracted text: A survey administered to a random sample of 250 U.S. college students found that 40 out of the 250 students surveyed were a member of a sorority or a fraternity. According to national data, 15% of U.S. college students are a member of a sorority or a fraternity. Fill in the blank below with the appropriate number corresponding to the provided symbol. The symbol below is "p hat". Enter p hat as a decimal rounded to two decimal places.