An Infinite Population Has a Mean of 40 and a Standard

question 24

Multiple Choice

An infinite population has a mean of 40 and a standard deviation of 15.A sample of size 100 is taken at random from this population.The standard error of the sample mean equals:

• A)15
• B)15/√100
• C)15/100
• D)None of these choices.

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Definitions:

One-Tail

It refers to tests of significance that determine if there is a relationship or a difference in only one direction, either greater than or less than, but not both.

Test Statistic

A calculated value used in statistical hypothesis testing to determine whether to reject the null hypothesis.

Level Of Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true; a threshold for determining the statistical significance of a result.

P-Value

The p-value is a measure in statistics that helps determine the significance of results from a hypothesis test, indicating the probability of observing the results given that the null hypothesis is true.