The whole school would have 170 students that have a dog
Answer:
$9,960
Step-by-step explanation:
249000 x 0.4 = 9960
Answer:
a) sample size is 40
Step-by-step explanation:
(a)
minutes
Margin of error, E is 75 seconds E=75/60= 1.25 minutes.
The level of significance for 95% level of significance
For 95% confidence interval from standard deviation table
Sample size required, n
Rounding off, n=40
Sample size =40
Keywords:
95% confidence, sample size, Wall Street Journal
Area of a triangle is calculated by using the formula A=1/2bh
A= 1/2 (8.2) (5)
A=1/2 (41)
A=20.5 or 20 1/2, whichever way you think your teacher wants it.
Supplier A: $188.6
Supplier B: $221.6
I hope I helped but I honestly have no idea if I did. Anyway sorry if I didn't. Good luck.