Identify the percent of change as an increase or decrease. Then find the percent of change, rounding to the nearest tenth of a p
1 answer:
You might be interested in
<h2>Answer with explanation:</h2>
Formula for plus-four confidence interval :
, where n= Sample size.
= Sample proportion and
z* = Critical z-value.
Let p be the proportion of puppies area found with early hip dysplasia.
As per given , we have
n= 42
Since confidence interval is not given , so we assume it as 95% .
z-critical value for 95% confidence is 1.96.
Then, the required confidence interval will become :
Hence, the plus four confidence interval for p = (0.0484, 0.256)
Interpretation: We are 95% sure that the true proportion of puppies area found with early hip dysplasia lies in (0.0484, 0.256).