Step-by-step explanation:
All steps are in pic above.
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Answer:
The sample size needed is 2401.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
The margin of error of the interval is:

95% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
Estimate the sample size needed if no estimate of p is available so that the confidence interval will have a margin of error of 0.02.
We have to find n, for which M = 0.02.
There is no estimate of p available, so we use 






The sample size needed is 2401.
Answer:
35 inches
Step-by-step explanation:
multiply length value by 12
You just have to set the denominator to zero and solve for x
Answer:
Answer is n^4
Step-by-step explanation:
You add the exponent when they are multiplying and have the same base