Answer:
The significance level is 
and since we are conducting a right tailed test we need to find a critical value who accumulate 0.01 of the area in the right of the normal standard distribution and we got:
So we reject the null hypothesis is 
Step-by-step explanation:
For this case we define the random variable X as the number of entry-level swimmers and we are interested about the true population mean for this variable . On specific we want to test this:
Null hypothesis: 
Alternative hypothesis: 
And the statistic is given by:
The significance level is and since we are conducting a right tailed test we need to find a critical value who accumulate 0.01 of the area in the right of the normal standard distribution and we got:
So we reject the null hypothesis is
1. The perimeter is 20. How I got that is to add all of them together- 9+3+3+3+2=20. The area is the area is 15. How I got that was I did the little square with 3 and 2 first. 3 times 2 = 6, then I did the 3 and 3 which = 9 and added those together 9+6=15
2. The perimeter is 15. How I got that is I add them all together. 6+3+2+2+2=15. The area is 10. I did 3 times 2 = 6, 2 times 2 = 4, 6+4=10
List the multiples of each qty:
7, 14, 21, 28,35,42,49,56,63
9, 18, 27, 36, 45, 54, 63
The least common multiple is 63
He bought 63 hotdogs and buns
Answer:
x=-11
Step-by-step explanation:
Answer:
4/8 or 1/2
Step-by-step explanation:
there are 2 sides of the coin and we flipped it 4 times so 2 x 4 = 8
there are 8 possible outcomes
only 1 side of the coin is face up and we flipped it 4 times so 1 x 4 = 4
so there is a 4/8 (or 1/2 if you want to simplify) chance of flipping a coin four times and landing face up each time.
