A bank manager wishes to estimate the average waiting time for customers in line for tellers. A random sample of 50 times is measured and the average waiting time is 5.7 minutes. The sample standard deviation of waiting time is 2 minutes. Which Excel function would be used to find the margin of error to construct a confidence interval estimate? Group of answer choices

Confidence. Norm

Explanation:

Confidence.Norm is an Excel function that uses a normal distribution to calculate the confidence value that can be used to calculate the confidence interval for a population mean,for a supplied probability and sample size. It is assumed that the standard deviation of the population is known.

So Confidence.Norm is the right formula to use here as the standard deviation has been given.

a variable of array type holds a reference of object

array are commonly used in computer program to organize data so that a related set of values

array are using zero base indexing it start with 0.

all component of array have same type, two different types doesn't use in single array

if array are store 10 quantities its index value varies from 0 to 9.

it stores 1st quantity value in index value 0 and this process will same till index value 9.