Simplify by combining like terms: 4a + 3(5a - 2)
2 answers:
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Answer:
(a) The sample size required is 2401.
(b) The sample size required is 2377.
(c) Yes, on increasing the proportion value the sample size decreased.
Step-by-step explanation:
The confidence interval for population proportion <em>p</em> is:
The margin of error in this interval is:
The information provided is:
MOE = 0.02
(a)
Assume that the proportion value is 0.50.
Compute the value of <em>n</em> as follows:
Thus, the sample size required is 2401.
(b)
Given that the proportion value is 0.55.
Compute the value of <em>n</em> as follows:
Thus, the sample size required is 2377.
(c)
On increasing the proportion value the sample size decreased.