### Determining standard deductions with standard deviation

Assignment Help Basic Statistics
##### Reference no: EM1315583

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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