Suppose a researcher is interested in investigating the effectiveness of a new diet plan at reducing BMI among a group of women with similar baseline weights after 1 year. Suppose the group of 45 women vary approximately according to a normal distribution with mean BMI (kg/m2) of 29.5 and a standard deviation of 1.6 kg/m2 after 1 year and the goal BMI was 28.5 kg/m2.    A) Did the women meet their goal weight? Use an alpha level of 0.05.

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  1. Suppose a researcher is interested in investigating the effectiveness of a new diet plan at reducing BMI among a group of women with similar baseline weights after 1 year. Suppose the group of 45 women vary approximately according to a normal distribution with mean BMI (kg/m2) of 29.5 and a standard deviation of 1.6 kg/m2 after 1 year and the goal BMI was 28.5 kg/m2

 

  1. A) Did the women meet their goal weight? Use an alpha level of 0.05.
  2. B) State your null and alternative hypotheses, and interpret your pvalue.
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