Statistics 4th quarter

The numerical measure that describes the certain characteristics of a population is called ______________.

• sample

• statistics

• parameter

• population

What are the two common parameters of normal distribution?

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Which of the following denotes the true value that would be obtained if a census rather than a sample was undertaken?

• sample

• statistic

• parameter

• population

Which of the following is NOT a parameter?

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Which of the following symbols is used for population variance?

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This hypothesis states that there is no difference between population parameters and the hypothesized value.

• hypothesis

• null hypothesis

• alternative hypothesis

• two-tailed hypothesis

When the value of parameter has significant difference with the hypothesized value, then it is called ________________.

• one-tailed test

• two-tailed test

• null hypothesis

• alternative hypothesis

The sign of the alternative hypothesis in a left-tailed test is always_________.

• Equal

• less than

• not equal

• greater than

What kind of hypothesis is illustrated below? The mean score of all Grade 11 students is higher than 75.

• one-tailed test

• two-tailed test

• null hypothesis

• alternative hypothesis

“A modern approach in the advertisement will not increase the demand for a product.” This is an example of _______________ hypothesis.

• null

• mean

• alternative

• right-tailed