* A researcher would like to test a hypothesis at the 0.05 level of significance that boys raise their hands in class more often than girls. Group statistics is presented below. What is your
conclusion regarding the research hypothesis? Remember to first decide whether this is a one-
or two-tailed test. (from the text p. 210)

Gender : boys girls
Sample size 14 16
Mean 7.93 5.31
Standard deviation 2.37 2.39
a. State the research and null hypotheses as sentences and in notation. (2 points)
b. What is the critical value? (2 points)
c. Calculate the test statistic. (3 points)

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

(-1,-0.5)

step-by-step explanation:

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: