In a Two-Tailed Hypothesis About a Population Mean with a Sample

question 74

Multiple Choice

In a two-tailed hypothesis about a population mean with a sample size of 100, $\sigma$ is known, and α = 0.10, the rejection region would be _______.

• A)z > 1.64
• B)z > 1.28
• C)z < -1.28 and z > 1.28
• D)z < -1.64 and z > 1.64
• E)z < -2.33 and z > 2.33

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Definitions:

Small Grocery Stores

Retail establishments primarily engaged in offering a range of food items and basic household goods, usually smaller in size and scope compared to supermarket chains.

Significance Level

The threshold below which a p-value is considered statistically significant, indicating the probability of rejecting the null hypothesis when it is true.

Confidence Interval

A set of statistical outcomes, derived from a sample, anticipated to contain the value of an unspecified population parameter.

Checking Accounts

These are types of bank accounts that allow for both deposits and withdrawals, commonly used for everyday transactions.