When recorded an outside temperature of -2 Fahrenheit at 8:00 a. M. When check the temperature again it was for Fahrenheit at 12:00 p. M. If x represents the time y represents the temperature in degrees Fahrenheit what is the slope of the line through these two data points

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0