[Solution] A researcher reported that a sample of size n=30 produced a sample mean of 32.56% and a sample standard deviation of 6.56%. Use this information
Question: A researcher reported that a sample of size n=30 produced a sample mean of 32.56% and a sample standard deviation of 6.56%. Use this information to calculate a 90% confidence interval for the national average for the "percent of low-income working families". Provide the upper and lower limits of the confidence interval and the margin of error. (Round the limits to two decimal places.)
Deliverable: Word Document 
![[See Steps] If a limited amount of](/images/solutions/MC-solution-library-78265.jpg "[See Steps] If a limited amount of federal funds have been allocated")
[See Steps] If a limited amount of federal funds have been allocated
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[All Steps] Clearly state the null and alternate
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[Step-by-Step] Use technology to identify, and then provide the test
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[All Steps] State, separately, both the decision/result of the
(Steps Shown) A recent study was done on class size and grades.
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