Hypothesis Testing Quiz

It is generally known as a decision-making process for evaluating claims about a population based on the characteristics of a sample purportedly coming from that population.

• Estimation

• Hypothesis testing

• Inferential statistics

• statistical hypothesis

It states an exact value about the parameter.

• Left-tailed test

• Right-tailed test

• Null hypothesis

• Alternative hypothesis

This statement states that there is a difference between a parameter and a specific value, or that there is a difference between two parameters.

• Left-tailed test

• Right-tailed test

• Null hypothesis

• Alternative hypothesis

Which of the following shows a Type I error?

• Martin knows that listening to the loud music is not good to him; he keeps on playing music with loud bass and twitters.

• Today is Monday, but you tell your classmates that it's weekend.

• Eating too much is not good to our health, but most of the people enjoy 'Eat All You Can' restaurant.

• Johnny knows that overuse of gadgets is not pleasing to one's health, most of the times he uses his smartphones and tablets.

One of the statements shows a Type II error, which one is this?

• Arnold insists that he is 25 years old; in fact he is 30 years old.

• Mr. Dela Vega's height is 5 feet, 11 inches, but he told the audience that he is 6-footer.

• On a beachfront, a signage reads, 'No littering of plastic wrappers, empty bottles, and cans.' A few yards away, environmentalists are picking up the rubbish left behind by picnic lovers.

• Marvin believes that dogs are man's best friends, the following week we saw him hurting his pit-bull.

What test statistic could be used if the sample n ≥ 30?

• t-test

• z-test

• n-test

• p-test

Which of the following are the 95% confidence coefficients for a two-tailed test?

• ± 1.65

• ± 1.96

• ± 2.33

• ± 2.58

When α = 0.01, the critical values are ____, for one-tailed test.

• ± 1.65

• ± 1.96

• ± 2.33

• ± 2.58

What do you mean if the null hypothesis is rejected?

• There is a significant difference between the sample mean and the population mean.

• There is no significant difference between the sample mean and the population mean.

• There is enough evidence to warrant the rejection of the alternative hypothesis.

• There is no enough evidence to warrant the rejection of the alternative hypothesis.

State the Steps in Hypothesis Testing