We wish to develop a confidence interval for the populationmean. The population

We wish to develop a confidence interval for the populationmean. The population follows the normal distribution the standarddeviation of the population is 3 and we have a sample of 10observations. We decide to use the 90% level of confidence. Theappropriate value of to represent the level of confidence isA) t=1.812B) t=1.833C) z =1.65D) z=1.96