Is the relationship shown by the data linear?if it is,model the data with an equation
1 answer:
You might be interested in
Answer:
The required sample size increases.
Step-by-step explanation:
The margin of error of a confidence interval is given by:
In which z is related to the confidence level(the higher the confidence level the higher z), is the standard deviation of the population and n is the size of the sample.
In this question:
The confidence level decreases, so z decreases.
For the margin of error to stay the same, the sample size also has to decrease.
The required sample size increases.