Pedro trabalha em uma oficina mecanica com o seu pai. ele recebe um salario fixo de r$1800,00 por mes, e dependendo dos conseitos ainda pode receber comissão

ele guarda em media 1/9 desse valor todos os meses em em sua poupança

depois de um ano quanto ele tera guardado?

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