(a) Find a point estimate for the population of all customers who experienced an interruption. Round the answer to at least three decimal places. The point estimate for the population proportion of all customers who experienced an interruption is Part: 1/3 Part 2 of 3 (b) Construct a 99.5% confidence interval for the proportion of all customers who experienced an interruption. Round the answer to at least three decimal places. A 99.5% confidence interval for the proportion of all customers who experienced an interruption is

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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100%

Internet service: An Internet service provider sampled 

530

 customers and found that 

80

 of them experienced an interruption in high-speed service during the previous month.

**Part 1 of 3**

(a) Find a point estimate for the population of all customers who experienced an interruption. Round the answer to at least three decimal places.

The point estimate for the population proportion of all customers who experienced an interruption is [  ].

**Progress Bar - Part: 1 / 3**

---

**Part 2 of 3**

(b) Construct a 99.5% confidence interval for the proportion of all customers who experienced an interruption. Round the answer to at least three decimal places.

A 99.5% confidence interval for the proportion of all customers who experienced an interruption is [  ] < p < [  ].

**Progress Bar - Part: 2 / 3**

---

**Part 3 of 3**

(c) The company's quality control manager claims that no more than 10% of its customers experienced an interruption during the previous month. Does the confidence interval contradict this claim? Explain.

[Choose one ▼], because all of the values in the confidence interval are [Choose one ▼] 0.1.

**Progress Bar - Part: 3 / 3**
Transcribed Image Text:**Part 1 of 3** (a) Find a point estimate for the population of all customers who experienced an interruption. Round the answer to at least three decimal places. The point estimate for the population proportion of all customers who experienced an interruption is [ ]. **Progress Bar - Part: 1 / 3** --- **Part 2 of 3** (b) Construct a 99.5% confidence interval for the proportion of all customers who experienced an interruption. Round the answer to at least three decimal places. A 99.5% confidence interval for the proportion of all customers who experienced an interruption is [ ] < p < [ ]. **Progress Bar - Part: 2 / 3** --- **Part 3 of 3** (c) The company's quality control manager claims that no more than 10% of its customers experienced an interruption during the previous month. Does the confidence interval contradict this claim? Explain. [Choose one ▼], because all of the values in the confidence interval are [Choose one ▼] 0.1. **Progress Bar - Part: 3 / 3**
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