Suppose You Want to Estimate the Difference Between Two Population $\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 1203$

question 66

Multiple Choice

Suppose you want to estimate the difference between two population proportions correct to within 0.03 with probability 0.90. If prior information suggests that p1 ≈ 0.4 and p2 ≈ 0.8, and you want to
Select independent random samples of equal size from the populations, how large should the
Sample sizes be?

• A) \(\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 1203\)
• B) \(n _ { 1 } = n _ { 2 } = 1925\)
• C) \(\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 1708\)
• D) \(\mathrm { n } _ { 1 } = \mathrm { n } _ { 2 } = 963\)

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Definitions:

Operating Activities

Transactions and events that enter into the determination of net profit or loss.

Interest Received

Income earned from investing in interest-bearing financial instruments or accounts, such as savings accounts, bonds, or loans.

Net Cash Inflow

The difference between the cash receipts and cash disbursements in a given period, indicating the net amount of cash generated.

Operating Activities

Transactions that relate to the primary operations of the company, such as cash received from sales of goods or services and cash paid for inventory, salaries, and rent.