Your supervisor constantly gets on you for things that you feel aren't your fault. Every other day , they approach you about wor
1 answer:
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Recall that margin of error is given by:
Given that <span>you want to be 95% confident that the sample percentage is within 2.5 percentage points of the true population percentage.
This means that
and M = 2.5% = 0.025.
Part A:
When nothing is known about the percentage of persengers who prefer aisle seat, we make use of p = 50% = 0.5.
Thus,
Therefore, 1,537 </span><span>randomly selected air passengers must be surveyed to </span><span>be 95% confident that the sample percentage is within 2.5 percentage points of the true population percentage.
Part B:
Given that recent surveys surgest that about 38% of all air passengers</span> prefer an aisle seat, thus p = 38% = 0.38
<span>Thus,
Therefore, 1,449 </span>randomly selected air passengers must be surveyed to <span>be 95% confident that the sample percentage is within 2.5 percentage points of the true population percentage.</span>
Given that <span>you want to be 95% confident that the sample percentage is within 2.5 percentage points of the true population percentage.
This means that
Part A:
When nothing is known about the percentage of persengers who prefer aisle seat, we make use of p = 50% = 0.5.
Thus,
Therefore, 1,537 </span><span>randomly selected air passengers must be surveyed to </span><span>be 95% confident that the sample percentage is within 2.5 percentage points of the true population percentage.
Part B:
Given that recent surveys surgest that about 38% of all air passengers</span> prefer an aisle seat, thus p = 38% = 0.38
<span>Thus,
Therefore, 1,449 </span>randomly selected air passengers must be surveyed to <span>be 95% confident that the sample percentage is within 2.5 percentage points of the true population percentage.</span>
Answer:
Approximately 71 .11 months
Explanation:
This is a Future Value question. However we are solving for the Number of periods to determine how long it would take Joan to accumulate $3688.
Interest compounded monthly means Joan will be paid interest on her deposit on an annual basis prorated. she gets to earn interest on the accumulation of interest + principal monthly.
The formular for calculating Future Value is
FV = PV ( 1 + R )ⁿ
Our R which is the Rate(5%) will be adjusted to 12 months. =
However we need to solve for the N since we already have our FV. Therefore the revised formular is :
Continuing with the formular
Which is equals to 71.11 months approximately 6 years.