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Of federal taxpayers who itemize their deductions and have adjusted gross incomes between $35,000 and $50,000, the dollar amount of gifts to charity claimed on Schedule A is normally distributed with a mean of $549 and a standard deviation of $168.
a. What percentage of taxpayers with adjusted gross incomes between $35,000 and $50,000 will claim less than $400 in gifts to charity on Schedule A?
b. What percentage of taxpayers with adjusted gross incomes between $35,000 and $50,000 will claim between $500 and $600 in gifts to charity on Schedule A?
c. The IRS decides to audit any return for which the deduction for gifts exceeds that for 99% of those who itemize and have adjusted gross incomes of between $35,000 and $50,000. Above what dollar figure is a tax return automatically flagged according to this criterion?
a bank branch wants to estimate the proportion of all customers who visit the bank primarily to use the outdoor atm. in
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A sample of 81 account balances of a credit company showed an average balance of $1,200 with a sample standard deviation of $126. You want to determine if the mean of all account balances is significantly different from $1,250. Use a .05 level of ..
Create and apply the equation that would best allow you to compare the performance of the sources - What is the total cost of the item plus sales tax?
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question a researcher finds a claim in the newspapers that the average room rate arr of all abu dhabi hotels is 163
Compute the value of z and state your decision regarding the null hypothesis.
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