Given n ≥ 30 and ơ is unknown, what is the appropriate distribution?, p, r, t, z, Which of the following statements present Type II error?, A true null hypothesis is accepted., A false null hypothesis is accepted., A true null hypothesis is rejected., A false null hypothesis is rejected., What is the main purpose of hypothesis testing?, Test a claim, Find a median, Draw a graph, List variables, What is the null hypothesis usually labeled?, p̂, μ, H1, H0, What is the alternative hypothesis usually labeled?, x̄, σ, Ha, H0, When the alternative hypothesis uses the symbol '<' , what kind of test is it?, Chi-square test, Right-tailed test, Two-tailed test, Left-tailed test, When the alternative hypothesis uses the symbol '≠' , what kind of test is it?, Two-tailed test, Left-tailed test, Right-tailed test, One-sample test, If a company claims its product lasts at least 12 months, which null hypothesis is appropriate?, μ ≠ 12, μ > 12, μ ≥ 12, μ < 12, Which pair correctly states the hypotheses for testing whether the population mean equals 50?, H₀: μ = 50; H₁: μ ≠ 50, H₀: μ < 50; H₁: μ > 50, H₀: μ ≠ 50; H₁: μ = 50, H₀: μ > 50; H₁: μ < 50, A school claims the average class size is no more than 40. Which null hypothesis is appropriate?, μ < 40, μ > 40, μ ≤ 40, μ ≠ 40, A cafe claims the mean waiting time is 5 minutes. Which hypotheses match this claim?, H0: μ > 5, H1: μ = 5, H0: μ = 5, H1: μ > 5, A manufacturer wants to test whether the average battery life is greater than 8 hours. Which alternative hypothesis is correct?, H0: μ ≠ 8, H1: μ < 8, H0: μ > 8, H1: μ > 8, A company states the average package weight is at most 2 kg. Which null hypothesis fits?, H1: μ ≤ 2, H0: μ ≤ 2, H1: μ = 2, H0: μ > 2, A gym claims members exercise at least 3 hours weekly on average. Which alternative hypothesis matches testing against the claim?, H0: μ < 3, H0: μ = 3, H1: μ < 3, H1: μ ≥ 3, A city expects the mean commute time to be 30 minutes. If checking for any change, which null hypothesis is correct?, H1: μ > 30, H0: μ ≠ 30, H1: μ = 30, H0: μ = 30

UNIT 4 : HYPOTHESIS TESTING

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