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
Construct a p chart that plots the percentage of patients unsatisfied with their meals. Set the control limits to include 99.73 percent of the random variation
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)?
Calculate the average length of the checkout line and the average time that customers spend waiting in line prior to checkout.
What is the correlation between the above variables and sales?
Use a weighted scoring model to choose between three locations (A, B, C) for setting up a factory. The relative weights for each criterion are shown
Problem: What are the steps of hypothesis testing? Which step is the most important? Write your response in APA style of writing.
Construct the probability distribution for the number of customers inside the post office (stopping at that n where the probability rounds to zero to two decimal places.
Produce a graph showing the distribution of net discounted pro?ts at the end of the ?fth year of operations.
Is there a significant difference in the mean height between the Eastern and Western Conference National Basketball League players?
A store manager kept track of the number of newspapers sold each week over a seven-week period. The results shown below. Find median number of newspapers sold.
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