Postpartum depression and anxiety (PPD), is a common medical condition affecting mothers and their families after the birth of a baby. The CDC estimated that 19% of women who have recently given birth suffer from PPD. However, this research only reflected self-reported cases. Therefore, one group dedicated to helping women and their families with PPD believes that the true percentage of women who suffer from PPD is much higher. The group conducts a simple random sample of 63 women who had given birth in the last year and discovers that 17 of them report having PPD. Based on this evidence, can the group claim that the true percentage of women who have PPD is greater than 19%? Use a 0.02 level of significance. Step 3 of 3 : Draw a conclusion and interpret the decision. A. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19 %. B. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19%. C. We reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19%. D. We reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19%.
Postpartum depression and anxiety (PPD), is a common medical condition affecting mothers and their families after the birth of a baby. The CDC estimated that 19% of women who have recently given birth suffer from PPD. However, this research only reflected self-reported cases. Therefore, one group dedicated to helping women and their families with PPD believes that the true percentage of women who suffer from PPD is much higher. The group conducts a simple random sample of 63 women who had given birth in the last year and discovers that 17 of them report having PPD. Based on this evidence, can the group claim that the true percentage of women who have PPD is greater than 19%? Use a 0.02 level of significance.
Step 3 of 3 : Draw a conclusion and interpret the decision.
A. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19 %.
B. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19%.
C. We reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19%.
D. We reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance that the true percentage of women who have PPD greater than 19%.
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