Researchers observed 50 random people brush their teeth and recorded the number of seconds each person spent brushing. From the sample, they found a mean time of 47.3 seconds. Further, their calculations revealed that this estimate is within a margin of error of 2.35 from the true average time that all people spend brushing their teeth. Write the interval estimate that will estimate the true average time that people spend brushing their teeth. Write your answer in interval notation: Write your answer using inequality notation: Submit Question So how do we calculate the point estimate?
Researchers observed 50 random people brush their teeth and recorded the number of seconds each person spent brushing. From the sample, they found a mean time of 47.3 seconds. Further, their calculations revealed that this estimate is within a margin of error of 2.35 from the true average time that all people spend brushing their teeth. Write the interval estimate that will estimate the true average time that people spend brushing their teeth. Write your answer in interval notation: Write your answer using inequality notation: Submit Question So how do we calculate the point estimate?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![**Educational Content: Estimating Average Brushing Time**
Researchers observed 50 random people brush their teeth and recorded the number of seconds each person spent brushing. From the sample, they found a mean time of 47.3 seconds. Further, their calculations revealed that this estimate is within a margin of error of 2.35 from the true average time that all people spend brushing their teeth. Write the interval estimate that will estimate the true average time that people spend brushing their teeth.
**Task:**
1. **Write your answer in interval notation:**
- ( [textbox], [textbox] )
2. **Write your answer using inequality notation:**
- [textbox] < μ < [textbox]
**Submit Question** [Button]
---
**Additional Guidance:**
**How to Calculate the Point Estimate**
The point estimate of the average brushing time is provided as the mean of the sample, which is 47.3 seconds. To calculate the interval estimate, subtract and add the margin of error to the mean:
- Lower bound: 47.3 - 2.35
- Upper bound: 47.3 + 2.35
Use these calculations to fill in the interval and inequality notations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F53e05450-a17a-4236-abf9-35e5f4dabf3b%2Fff607d82-a94c-4059-95e7-1f33e4db9390%2Fk9u6tks_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Educational Content: Estimating Average Brushing Time**
Researchers observed 50 random people brush their teeth and recorded the number of seconds each person spent brushing. From the sample, they found a mean time of 47.3 seconds. Further, their calculations revealed that this estimate is within a margin of error of 2.35 from the true average time that all people spend brushing their teeth. Write the interval estimate that will estimate the true average time that people spend brushing their teeth.
**Task:**
1. **Write your answer in interval notation:**
- ( [textbox], [textbox] )
2. **Write your answer using inequality notation:**
- [textbox] < μ < [textbox]
**Submit Question** [Button]
---
**Additional Guidance:**
**How to Calculate the Point Estimate**
The point estimate of the average brushing time is provided as the mean of the sample, which is 47.3 seconds. To calculate the interval estimate, subtract and add the margin of error to the mean:
- Lower bound: 47.3 - 2.35
- Upper bound: 47.3 + 2.35
Use these calculations to fill in the interval and inequality notations.
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