Confidence interval rstudio5/10/2023 After the task they rated the difficulty on the 7 point Single Ease Question. Now try two more examples from data we’ve collected.įourteen users attempted to add a channel on their cable TV to a list of favorites. Note: There is also a special calculator when dealing with task-times. You can find what multiple you need by using the online calculator. If you have a smaller sample, you need to use a multiple slightly greater than 2. Our best estimate of what the entire customer population’s average satisfaction is between 5.6 to 6.3. We now have a 95% confidence interval of 5.6 to 6.3.
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