Answer:
A sample size of 385 is needed.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
That is z with a pvalue of 
, so Z = 1.96.
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
You feel that a reasonable estimate of the standard deviation is 10.0 hours.
This means that 
What sample size is needed so that the expected margin of error of your estimate is not larger than one hour for 95% confidence?
A sample size of n is needed. n is found when M = 1. So
Rounding up:
A sample size of 385 is needed.
Answer:
8
Step-by-step explanation:
approx. 8
As 510 lies closer to the cube of 8 which is 512
5, 3, 2, 6, 7, 9, 1, 15, 4, 2, 3, 3, 9, 5, 1, ?
Shkiper50 [21]
Answer:
I have no idea thank you for the points
Step-by-step explanation:
If Samriti travels 7/12 of her trip she has 5/12 remaining.
Her total trip will be 12/12 therefore if you find what you need to add to 7 to make five we find the remainder of her journey. 12-7=5
If her total trip is 240 miles and we need to find 5/12 of it.
We first divide it by 12: 240/12= 20
This gives us 1/12 of her trip, 20=1/12
We now need to multiply 20 by 5 so get 5/12 of her trip:
5 x 20 =100
Therefore, 100 is the same as 5/12, which is the remainder of her journey.
<h3>
Answer: -2, -1/3, 1/2, 5/6</h3>
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Work Shown:
Let,
A = 1/2
B = 5/6
C = -2
D = -1/3
Convert each fraction to decimal form
A = 1/2 = 0.5
B = 5/6 = 0.833 approximately
C = -2
D = -1/3 = -0.333 approximately
So,
A = 0.5, B = 0.833, C = -2, D = -0.333
they sort to
C = -2, D = -0.333, A = 0.5 and B = 0.833 when writing in ascending order.
Therefore,
C = -2, D = -1/3, A = 1/2, B = 5/6 is the order from least to greatest.
