Which is the best estimate for (2.8 times 10 Superscript 3 Baseline) (4.1 times 10 Superscript 6 Baseline) written in scientific
2 answers:
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Answer:
Step-by-step explanation:
Let be the point.
Any point on y-axis is (0, y, 0)
So, distance is
=
= ......(1)
Now any point on x-z plane is
Distance from p to this point is
=
= .........(2)
Equating (1) and (2), we get
This is the required equation.
<h2>Answer : (2.67, 3.53)</h2><h2></h2>
Step to step explanation:
Confidence interval for mean, when population standard deviation is unknown:
, where = sample mean
n= sample size
s= sample standard deviation
= Critical t-value for n-1 degrees of freedom
We assume the family size is normal distributed.
Given, n= 31 , , s= 1.42 ,
Critical t value for and degree of 30 freedom
= 1.697 [By t-table]
The required confidence interval:
Hence, the 90% confidence interval for the estimate = (2.67, 3.53)