Suppose a random sample of 94items has been taken from a population and 43of the items contain the characteristic of interest. a. Use this information to calculate a 90% confidence interval to estimate the proportion of the population that has the characteristic of interest. b. Calculate a 95% confidence interval. c. Calculate a 99% confidence interval. d. As the level of confidence changes and the other sample information stays constant, what happens to the confidence interval?

Appendix A Statistical Tables

(Round the intermediate values to 2 decimal places, e.g. 0.25. Round your answers to 2 decimal places, e.g. 0.25.) a. enter an appropriate value p enter an appropriate value b. enter an appropriate value p enter an appropriate value c. enter an appropriate value p enter an appropriate value d. All other things being constant, as the confidenceincreased, the width of the interval... (DECREASED/INCREASED?)