Answer:
143.31 < µ < 176.69
Step-by-step explanation:
The manager wants a 90% confidence interval based on the data. We are given 6 weekdays of data. We have to do 3 things:
1. Calculate the mean number of customers
2. Calculate the standard deviation of the number of customers
3. Construct the confidence interval
*For #1 and #2, see attached photo 1 for the calculations...
The sample mean is: 160
The sample standard deviation is: 20.29
The t-value we need is found using the t-distribution chart, with 5 degrees of freedom. Our t-value is: 2.015
*See attached photo 2 for construction of the confidence interval
Step-by-step explanation:
in a management information system, the quality of information is determined by its usefulness to users, and its usefulness determines the success of the information system.
The initial value would be 52 if she begins from where she starts measuring.