We wish to develop a confidence interval for thepopulation mean. The population

We wish to develop a confidence interval for thepopulation mean. The population follows the normal distributionthe standard deviation of the population is 3 and we have a sampleof 10 observations. We decide to use the 90% level of confidence.The appropriate value of to represent the level of confidenceisA. z=1.65B. z=1.96C. z=1.833D. z=1.812