Given: Karacafe is a newly launched product of Philippine Kalabaw Center. Carry, the project's head, is interested to determine the mean number of bottles of Karacafe bought his customers. From a...

Answer the following. Show solution/explanation

Extracted text: Given: Karacafe is a newly launched product of Philippine Kalabaw Center. Carry, the project's head, is interested to determine the mean number of bottles of Karacafe bought his customers. From a random sample of 64 customers taken with replacement, a mean 16 bottles was computed. Suppose the number of bottles of Karacafe bought by a customer follows a normal distribution with a known standard deviation of 9. 1. The appropriate tabular value to use for the 95% confidence interval estimate of the true mean number of bottles of Karacafe bought by a customer is A. 1.960 B. 1.645 C. 2.262 D. 2.228 2. A 95% confidence interval about the mean number of bottles of Karacafe bought by a customer is A. [13.795, 18.205] B. [14.149, 17.851] C. [14.560, 17.440] D. [14.875, 17.125] 3. A 90% confidence interval about the true mean number of bottles of Karacafe bought by a customer is constructed as [16 ± 1.85]. Which of the following is(are) TRUE? 1. We are 90% confident that the true mean number of bottles of Karacafe bought by a customer is between 14.15 and 17.85 bottles. II. If 1000 such confidence intervals are constructed, 900 of them will contain the true mean number of bottles of Karacafe bought by a customer. A. I only B. Il only C. Both I and II D. Neither I nor II