Hypothesis Testing Notes Step 1

Which of the following represents the appropriate null & alternative hypotheses?
Carlos suspects that the mean height of women is greater than the population mean of 64".

• H₀: μ = 64"
  Hₐ: μ > 64"

• H₀: μ = 64"
  Hₐ: μ < 64"

• H₀: μ > 64"
  Hₐ: μ ≠ 64"

It is said that 60% of families own a pet. Of a sample of 95 families, 70 owned pets. Perform a hypothesis test to determine whether the percent of families who own pets is different than 60%.

The correct null and alternative hypotheses are

• H₀: μ = 60
  Hₐ: μ > 60

• H₀: μ = 60
  Hₐ: μ ≠ 60

• H₀: μ = 60
  Hₐ: μ ≠ 70

• H₀: μ = 60
  Hₐ: μ > 70

The null or alternative hypothesis may contain the sample mean.

• True

• False

Match the following graphs to the correct type of test.

Groups:

(a) Right-sided Test

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(b) Left-sided Test

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(c) Two-sided Test

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