Average acceleration is defined as
here
now for x direction we can say
Similarly for Y direction
so above is the acceleration in x and y directions
A random selection of volunteers at a research institute has been exposed to a weak flu virus. After the volunteers began to hav
1 answer:
The confidence interval is given as lower interval is -0.77 while The upper interval is 1.67
<h3>How to solve for the confidence interval</h3>Multivitamin treatment
n1 is 10
σ1 = 1.8
x21 = 5
vitamin C treatment
n2 = 10
σ2 = 1.5
x2 = 4.55
zα/2 = 1.645
The formula for the confidence interval is given as
(x1 - x2) ± zα/2
When we input the values we have above we would have
CI = (-0.7688550 , 1.668855 )
The the lower interval is -0.77
The upper interval is 1.67
Read more on confidence interval here:
#SPJ1
<h3>Complete question</h3>A random selection of volunteers at a research institute has been exposed to a weak flu virus. After the volunteers began to have flu symptoms, 10 of them were given multivitamin tablets daily that contained 1 gram of vitamin C and 3 grams of various other vitamins and minerals. The remaining 10 volunteers were given tablets containing 4 grams of vitamin C only. For each individual, the length of time taken to recover from the flu was recorded. At the end of the experiment the following data were obtained:
Treated with multivitamin
Days to recover from flu
2.4, 6.4, 9.1, 4.1, 4.6, 6.4, 6.4, 3.2, 6.9, 0.5
Treated with Vitamin C
5.2, 3, 3.6, 5.5, 7.5, 6.7, 1.3, 1.9, 5.3, 5.5
Suppose that it is known that the population standard deviation of recovery time from the flu is 1.8 days when treated with multivitamins and that the
population standard deviation of recovery time from the flu is 1.5 days when treated with vitamin C tablets. Suppose also that both populations are
approximately normally distributed. Construct a 90% confidence interval for the difference µµ₂ between the mean recovery time when treated with
multivitamins (μ,) and the mean recovery time when treated with vitamin C only (H2). Then complete the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places. (If necessary, consult a list of formulas.)
What is the lower limit of the 90% confidence interval?
What is the upper limit of the 90% confidence interval?
You might be interested in
By definition, the power is given by:
Where,
F: Force
d: distance traveled
t: time
The power units is watts.
Substituting values we have:
Making the corresponding calculations we have:
Answer:
he uses 63 watts of power:
Where,
F: Force
d: distance traveled
t: time
The power units is watts.
Substituting values we have:
Making the corresponding calculations we have:
Answer:
he uses 63 watts of power: