Question: Chi-Square Assignment A study was conducted to examine the relationship between delivery method and exclusive breastfeeding at hospital discharge. It was conducted by randomly surveying

Chi-Square Assignment

A study was conducted to examine the relationship between delivery method and exclusive breastfeeding at hospital discharge. It was conducted by randomly surveying postpartum women at a university hospital.

Delivery Method and Exclusive Breastfeeding at Hospital Discharge

Actual

Vaginal Delivery

C-Section Delivery

Total

Breastfeeding No

120

Breastfeeding Yes

324

420

Total

405

135

540

1.If the number of infant births for the year is 3230 and your sample is 540 infant births, what percentage of the delivery population for the year did you sample? (Round to the nearest tenth)

2.What is an appropriate null hypothesis for this study.

3.What is an alternative hypothesis that corresponds to your null hypothesis.

4.Using Excel calculate the chi-square from the 2 x 2 table given. The level of significance (alpha) you chose was 0.05. Is exclusive breastfeeding at hospital discharge different for vaginal deliveries and c-section deliveries (make sure to include chi-square result)?

5.What should you conclude about your null hypothesis? (Reject or Fail to Reject)

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