Answer:the middle one
B is the answer
Step-by-step explanation:
Answer: 11
Step-by-step explanation:
We know that the degree of freedom for a t-distribution is given by :-
, where n is the sample size.
Given : A repeated-measures experiment and a matched-subjects experiment each produce a t statistic with df = 10.
Then, the number of individuals participated in each study =
Hence, the number of individuals participated in each study =11.
Answer:
D
Step-by-step explanation:
If you multiply something that is a negative number by something that is positive, in this case, the power of 2, then the answer will still be negative. So -5 ^ 2 is negative 25. When you calculate the power of a negative number, then the result depends on the power of the number, so if it's a positive 2 then the answer will be positive.
Answer:
25%
Step-by-step explanation:
500 bumper stickers sold in the first week is 100%. The bumper stickers sold in the second week is 50% more (150%).
500 / 100 = x / 150
x = 750
750 bumper stickers sold in the second week is 100%. The bumper stickers sold in the third week is 50% less (50%).
750 / 100 = x / 50
x = 375
The bumper stickers sold in the third week as a percentage of the bumper stickers sold in the first week is:
375 / 500 = x / 100
x = 75
The bumper stickers sold in the third week is 75% of the bumper stickers sold in the first week, which means there was a 25% decrease.