Question

Asked Dec 3, 2019

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Consider the data below. Previous studies have shown that approximately 32% of women deliver prematurely without treatment. Is the proportion of women delivering prematurely significantly higher in the placebo group? Run the test at a 5% level of significance.

Preterm Delivery | Experimental Drug | Standard Drug | Placebo |

Yes | 17 | 23 | 35 |

No | 83 | 77 | 65 |

Step 1

Here we are considering the placebo group

The sample proportion= P= 0.35

The sample size of placebo group is 100.

Step 2

Set up the null hypothesis:

Null hypothesis H_{0}: p = 0.32

Alternative hypothesis H_{1}: p > 0.32

Step 3

The test stat...

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