Is 1/6 and 6/6 equal or not equal?
2 answers:
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Answer:
<em>2 times </em>
<em></em>
Step-by-step explanation:
Please refer to the image attached of our <em>solar system </em>in which Saturn and Uranus are clearly visible.
Distance of Saturn from Sun,
Distance of Uranus from Sun,
We have to find, how many times the Uranus is far from Sun than Saturn is far from Sun.
Let us begin by multiplying the distance of Saturn from Sun by 2:
From above, we can say that is approximately <em>twice </em>of
.
In other words, we can say that Uranus is at approximately twice distance from Sun than that of Saturn is.
NOTE:
As Part (a) and Part (b) are already correctly solved in the question, I will be solving Part (c), Part (d) and Part (e).
Answer:
Part (c):
As we are not given the standard deviation of the population, we will use
t-distribution for this scenario.
The degrees of freedom will be n-1 = 80, hence our distribution parameter will be t.
Part (d):
The critical value (t) for 95% confidence level is at 80 degree of freedom is obtained from the attached table.
t = 1.99
Now, let us first calculate the error bound
E = t * (sx)/(√n)
E = 1.99 * (4)/(√81)
E = 0.884 ===========> Error Bound
Confidence interval is obtained as follows:
(X¯ - E), (X¯ + E)
(8 - 0.884), (8 + 0.884)
(7.116, 8.884) ===========> Confidence Interval
Graph is attached as an image.
Part (e):
The confidence interval indicates that we can predict with 95% confidence that the population mean time wasted at the court, waiting to be called for jury duty, will lie between 7.1155 and 8.8845 hours.
