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State the null and alternative hypothesis

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Reference no: EM132331978

A random sample of 32 second-grade children had a mean reading time of 122.7 letters per minute with a standard deviation of 11.8 letters per minute. Use a 0.05 level of significance to test the claim that the population mean reading time of second-grade children is higher than 120 letters per minute.

  • State the null and alternative hypothesis.
  • Calculate the test statistic; show work below.
  • Determine the P-value.
  • State the decision and a conclusion.

Reference no: EM132331978

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