Asample of n = 15 produces a single sample t statistic of t = - 2.12. if the researcher is using a two-tailed test for hypotheses testing, which of the following is the correct statistical decision?

a. the researcher can reject the null hypothesis with α = .05 but not with α = .01.

b. the researcher can reject the null hypothesis with either α = .05 or α = .01.

c. it is impossible to make a decision about h0 without more information.

d. the researcher must fail to reject the null hypothesis with either α = .05 or α = .01.

d? maybe

step-by-step explanation:

step-by-step explanation:

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional