Answer: 5
Step-by-step explanation: There are 2.5 cm per in, so its just 2.5*2
Answer:
24x4 24 divided by 4 24+ 4 it should be one of these hope this helps
Step-by-step explanation:
3.c - 8 = 5
(3.c - product of 3 and a number)
(-8 : 8 less)
Answer:
(-3.07, 11.07)
Step-by-step explanation:
Given that a sports writer wished to see if a football filled with helium travels farther, on average, than a football filled with air. To test this, the writer used eighteen adult male volunteers. These volunteers were randomly divided into two groups of nine subjects each.
Group Group One Group Two
Mean 300.00 296.00
SD 8.00 6.00
SEM 2.67 2.00
N 9 9
The mean of Group One minus Group Two equals 4.00
standard error of difference = 3.333
df = 16
t = 1.2000
Margin of error = 3.3333* t critical = 3.3333*2.121
95% confidence interval of this difference: From -3.07 to 11.07
