A Sample of N = 4 Scores Is Selected from a Normal

question 71

Multiple Choice

A sample of n = 4 scores is selected from a normal population with a mean of µ = 50 and a standard deviation of σ = 20.What is the probability of obtaining a sample mean greater than M = 48?

• A)p = 0.6554
• B)p = 0.3446
• C)p = 0.5793
• D)p = 0.4207

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Definitions:

Collection Delay

The time period between when a cheque is deposited and when the funds are available for use.

Average Amount

The sum of a set of values divided by the number of values, often used to find a central value or typical amount in a dataset.

Debit Card

An automated teller machine card used at the point of purchase to avoid the use of cash. As this is not a credit card, money must be available in the user’s bank account.

Automated Teller Machine Card

A plastic card linked to a bank account, used at ATMs for transactions such as cash withdrawals, deposits, and balance checks.