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Q1) Survey of 1000 tax returns reports families with incomes between $75,000 and 100,000 have on average $8,562 in Standard Deductions with standard deviation of $1,800.
a) Determine a 98% CI for m.
b) Determine a 95% CI for m.
c) Determine a 90% CI for m.
Q2) Survey of 16 tax returns reports families with incomes between $75,000 and 100,000 have on average $8,562 in Standard Deductions with the standard deviation of $1,800.
d) With sample size reduced to 16 Determine a 90% CI for µ.
e) With sample size reduced to 16 Determine a 98% CI for µ.
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