TEST IN STATISTICS AND PROBABILITY (1)

What type of error is committed you fail to reject a false null hypothesis?

 

• Type III error
• Type I error
• Sampling error
• Type II error

Which symbol should be used in your alternative hypothesis, if you use “ = ” in your null hypothesis?

• >
• =
• <
• ≠

Which is the correct illustration for alternative hypothesis, less than 150?

• 𝐻_𝑎: 𝜇 > 150

• 𝐻_𝑎: 𝜇 < 150

• 𝐻𝑎: 𝜇 ≥ 150

• 𝐻_𝑎: 𝜇 ≤ 150

Identify the parameters in the given statements.

The study claims that Filipino men aged 20 to 29 years, were 165 cm tall.

• 𝑋̅ = 165

• 𝜇 = 165

• 𝑠 = 165

• 𝜎 = 165

Identify the parameters in the given statements.

On average for those aged 20 to 29 years, Filipino women were 47 kg.

• 𝑋̅ = 47

• 𝜇 = 47 

• 𝑠 = 47

• 𝜎 = 47

What is the null hypothesis for the statement, "The mean number of students visiting the library in a day is 30."?

• 𝐻_𝑜: 𝜇 = 30

• 𝐻_𝑜: 𝜇 ≠ 30

• 𝐻_𝑜: 𝜇 > 30

• 𝐻_𝑜: 𝜇 < 30

The researcher wants to determine the relationship of students’ level of anxiety to their academic performance. Which represents the independent variable?

• Level of anxiety

• Academic performance

• Both A and B

• Insufficient data

What is the rejection region in hypothesis testing?

• The region where the null hypothesis is accepted

• The region where the null hypothesis is rejected

• The region where the alternative hypothesis is accepted

• The region where the alternative hypothesis is rejected

What is a type I error in hypothesis testing?

• Rejecting a true null hypothesis

• Accepting a false null hypothesis

• Rejecting a false null hypothesis

• Accepting a true null hypothesis

What is a type II error in hypothesis testing?

• Rejecting a true null hypothesis

• Accepting a false null hypothesis

• Rejecting a false null hypothesis

• Accepting a true null hypothesis