Answer: 
Step-by-step explanation:
- A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
- An alternative hypothesis says that there is a statistical significance between two variables.
Claim 1. : Mean age of online dating service users is 40 years.
i.e. 
, since it has equals sign so we take this as null hypothesis.
Claim 2. : Mean age of online dating service users is not 40 years.
⇒ Null Hypothesis :
Alternative hypothesis :
you have to divide 7 by 15 equals .466666666
Answer:
Step-by-step explanation:
C
9514 1404 393
Answer:
(C) 0.27 × 9 = 2.43
Step-by-step explanation:
Each colored section is 27 small squares, so is 27/100 = 0.27 of the whole. There are 9 colored sections, together totalling 2 wholes plus 43 small squares, or 2.43.
The equation this represents could be ...
0.27 × 9 = 2.43 . . . . . matches choice C
Answer: micheal Jackson!
Step-by-step explanation:
