Calculating margin of error
Question 1. A population has a known standard deviation of 25. A simple random sample of 49 items is taken from the selected population. The sample mean (x-bar) is 300. What is the margin of error at the 95% confidence level?
Expected delivery within 24 Hoursrs
(a) Use Excel or MegaStat to find the mean, median, and mode. (b) Do these measures of central tendency agree? Explain.
Question: What is the difference between a t-test and ANOVA, and how are they related? Write yopur response in accordance to APA style of writing.
An average is an attempt to summarize a collection of data into just one number.
Use the shortest operation time rule to schedule these jobs. What is the schedule? What is the mean flow time?
Solve the LP problem in Excel Solver and write down the optimal solution and optimal value of the objective function
Develop a regression model that could be used to predict the final average in the course based on the first test grade.
What is the forecast for the 8th year based on a exponential smoothing with alpha = 0.85 (use 6.0 as the first year’s forecast)?
What value do statistics add to decision making? What limitations are there when applying statistics to decision making?
1) Identify both the activities and the resources for this problem. 2) Formulate a linear programming model for this problem on a spreadsheet.
Question 1: Determine the optimal number of angels for Ingrid to order. Question 2: Why isn't Ingrid concerned with the reorder point for angels?
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!