Answer:
The minimum sample size needed is
. If n is a decimal number, it is rounded up to the next integer.
is the standard deviation of the population.
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 Z-table as such z has a p-value of
.
That is z with a pvalue of
, so Z = 1.645.
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.
How large a sample must she select if she desires to be 90% confident that her estimate is within 4 ounces of the true mean?
A sample of n is needed, and n is found when M = 4. So






The minimum sample size needed is
. If n is a decimal number, it is rounded up to the next integer.
is the standard deviation of the population.
Answer:
The answer would be 0.83 repeated decmal
Step-by-step explanation:
All you got to do is divide the two numbers and it'd give you 0.83 repeated decmal
Answer: 105
Explanation:
60% + 10% = 70% = yellow and green
30% = red
350/10 = 35 x 3 = 105
Answer:
Step-by-step explanation:
5³ = 5 × 5 × 5 = 125
= 2 × 2 × 2 × 2 × 2 = 32
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Answer:dwqdwdqw
Step-by-step explanation:
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