1.I hypothesized that girls in my class have the same blood pressure levels as boys. The probability value for my null hypothesis was 0.15. So I conclude that the blood pressures of the girls were higher than boys'. Which kind of mistake did I make?
a. Type I error
b. Type II error
c. Type I and Type II error
d. I did not make any mistake .

2.If a statistical test result is not significant at the 0.05 level, then we can conclude:
a. It is not significant at 0.10 level
b. It must be significant at 0.01 level
c. It must be significant above 0.05 level
d. It is not significant at 0.01 level