Answer: the answer is 127.07 yards.
Answer:
Option a) 1.6 .
Step-by-step explanation:
We are given that 142 subjects were treated with acupuncture. The numbers of migraine attacks for the treatment group had a mean of 1.8 and a standard deviation of 1.4 which means;
Sample Mean, = 1.8 , Sample standard deviation, s = 1.4 and Sample size = 142.
Now, 95% confidence interval estimate of the mean number of migraine attacks for all people treated with acupuncture is given by;
⇒
So, the lower bound = = 1.56 ≈ 1.6
Therefore, option A is correct.
Answer:
28% decrease
Step-by-step explanation:
Percentage Decrease=
(Starting Value − Final Value) / Starting Value x 100
(850 - 612) / 850 x 100 = .28
Answer:3 gallons of paint
Step-by-step explanation:multiply 23 times 16 and then divide by 175.
Step-by-step explanation:
gradient/slope = 3
y-intercept
2x - 3y = 4
3y = 2x - 4
y = 2/3x - 4/3
so y-intercept is double -4/3 so... -4/3x2 = -8/3
the equation of the line is
y = 3x - 8/3 or 9x - 3y = 8