BSHS 382 Week 3 Team Assignment Research Proposal ( 3 Papers )
# no of children |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
n |
1851 |
869 |
1462 |
945 |
494 |
281 |
153 |
93 |
|
|
|
|
|
a . Find the standard error of the sample mean of the random sample of 6189 adults . b . Construct a 95 % confidence interval for the population mean µ. Can it be concluded that the population mean is less than 2.0 ? c . On what assumptions is the analysis in part ( b ) based ? Is the assumption of randomization valid ? Is the assumption that the population distribution is approximately normal a valid assumption ?
6 . A survey asked the question “ What do you think is the ideal number of children for a family to have ?” The 473 females who responded had a median of 2 , mean of 3.13 , and standard deviation of 1.48 . Answer parts a-d .
a . |
What is the point estimate of the population mean ? |
b . |
Find the standard error of the sample mean . |
c . |
The 95 % confidence interval is ( 3,3.26 ). Interpret . |
d . |
Is it plausible that the population mean µ = 2 ? |
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BSHS 382 Week 3 Team Assignment Research Proposal ( 3 Papers )
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