Answer:
Step-by-step explanation:
Given that
Group Group One Group Two
Mean 26.00 23.00
SD 2.00 4.00
SEM 0.40 1.21
N 25 11
where group I represents female servers and group II male servers.
We have to calculate confidence interval for 90% for difference in means
The mean of Group One minus Group Two equals 3.00
df = 34
standard error of difference = 0.993
t critical = 2.034 for 90% df 34
Hence confid. interval at 90%
=Mean diff ±2.034 * std error of diff
= (0.98, 5.02)
Answer:
Step-by-step explanation:
Hope this helps!
Answer:
(b-20)/4
Step-by-step explanation:
She had b beads initially and gave 20 to his sister;
what he would have now will be;
b - 20
So he made 4 beads with the remaining
To know the number of beads on each of the four , that will be dividing the number of beads we have left by 4
Mathematically;
that will be ;
(b-20)/4
Answer: 0.52
Step-by-step explanation: 8 out of the 15 years were in the 90s. So 8/15 is 0.52
18. 17.9
19. 21.1
20. I cant see the numbers sorry; if the sides are 6, √85 than it should have an angle of 40.6