Hypothesis Testing 4

What is the only option for the null hypothesis? 

• H₀ = k
• H₀ > k
• H₀ < k
• H₀ ≠ k

Which of the following is not an option for an alternate hypothesis? 

• H_a = k
• H_a > k
• H_a < k
• H_a ≠ k

The weight of the average 6th grade student's backpack (with books in it) is 18.4 lbs. The principal of the school thinks that the backpack does not weight 18.4 lbs. What is the null and alternate hypothesis? 

• H₀ = 18.4
  H_a = 18.4
• H₀ = 18.4
  H_a > 18.4
• H₀ = 18.4
  H_a < 18.4
• H₀ = 18.4
  H_a ≠ 18.4

Which of the following is the FIRST step of a hypothesis test?

• Check assumptions & conditions
• Find your test statistic
• State your conclusion
• State your null & alternative hypotheses

H₀: μ = k

H₁: μ ≠ k

• Left-tailed test

• Two-tailed test

• Right-tailed test

A __________ occurs if you reject the null hypothesis when it is true.

• Type I error

• Type II error

mark ALL that apply

• This is a LEFT tail test

• This is a RIGHT tail test

• This has a significance level of 0.05

• This has a critical value of 1.645

• This has a critical value of -1.645

Which of the following has the highest significance level?

• 
• 
• 
• 

Which of the following shows a right-tailed test?

• Ha: µ < 15
• H₀: µ < 15
• Ha: µ > 15
• H₀: µ > 15

What is the definition of a hypothesis?

• A claim on a particular parameter of a population.

• It evaluates if a population parameter is equal to the stated sample statistics.

• Determination of the level of significance and the sample size.

• A statement on statistical decision.

• A statement on managerial conclusion.