Asked by charity earhart on Jun 10, 2024
Verified
The technical support department at Apple, Inc.sampled 100,000 calls and reported that the mean of time a customer is placed on hold is 4.5 minutes.Assume a standard deviation of 1.75 minutes.Provide a 95% confidence interval estimate for the true average time a customer was placed on hold.
Technical Support
Assistance provided to users who are having issues with electronic devices, software, or services.
Confidence Interval
A range of values used in statistics that is likely to contain the population parameter of interest.
- Comprehend and utilize the principles of confidence intervals for the estimation of population parameters.
- Develop confidence intervals for the means of populations, regardless of whether the standard deviations of those populations are known or unknown.
- Employ statistical software or perform manual computations to determine confidence intervals.
Verified Answer
DG
Learning Objectives
- Comprehend and utilize the principles of confidence intervals for the estimation of population parameters.
- Develop confidence intervals for the means of populations, regardless of whether the standard deviations of those populations are known or unknown.
- Employ statistical software or perform manual computations to determine confidence intervals.