* 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)

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

answer: x=3 and y=4

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: