Charlotte measured the temperture at 7:00 AM and again at 3:00 PM She placed both measurements on a number line how did the temperture change between 7 am and 3pm

A- it increased 3/4 C
B- it decreased 3/4 C
C- increased 11 3/4 C
D it decreased 11 3/4 C
I NEED HELP ASAP

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.