A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within0.03with95%confidence if(a) she uses a previous estimate of0.54?(b) she does not use any prior estimates? Question content area bottomPart 1(a)n=enter your response here(Round up to the nearest integer.) ### Table of Critical ValuesThis table provides critical values for various confidence levels, which are important for statistical analysis, particularly in hypothesis testing.#### Columns:1. **Level of Confidence (1 - α): 100%** - Represents the confidence level for a statistical test.2. **Area in Each Tail, α/2** - Indicates the probability of observing the test statistic in each tail of the distribution.3. **Critical Value, Zᵦ** - The cutoff value that defines the regions where the null hypothesis is either rejected or not rejected.#### Data:- **99% Confidence Level**: - Area in Each Tail: 0.005 - Critical Value: 2.575- **95% Confidence Level**: - Area in Each Tail: 0.025 - Critical Value: 1.96- **90% Confidence Level**: - Area in Each Tail: 0.05 - Critical Value: 1.645These critical values are used to determine the threshold for significance in hypothesis testing. For example, in a 95% confidence level test, the critical value is 1.96, meaning you would reject the null hypothesis if your test statistic exceeds this value.

given data E = 0.0395% ci for pn = ?(a) use p^ = 0.54(b) no prior estimate.

A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.03 with 95% confidence if (a) she uses a previous estimate of 0.54? (b) she does not use any prior estimates?

A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.03 with 95% confidence if (a) she uses a previous estimate of 0.54? (b) she does not use any prior estimates?

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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Question content area bottom

Part 1

(a)

n=enter your response here

(Round up to the nearest integer.)

### Table of Critical Values

This table provides critical values for various confidence levels, which are important for statistical analysis, particularly in hypothesis testing.

#### Columns:
1. **Level of Confidence (1 - α): 100%**
- Represents the confidence level for a statistical test.

2. **Area in Each Tail, α/2**
- Indicates the probability of observing the test statistic in each tail of the distribution.

3. **Critical Value, Zᵦ**
- The cutoff value that defines the regions where the null hypothesis is either rejected or not rejected.

#### Data:
- **99% Confidence Level**:
- Area in Each Tail: 0.005
- Critical Value: 2.575

- **95% Confidence Level**:
- Area in Each Tail: 0.025
- Critical Value: 1.96

- **90% Confidence Level**:
- Area in Each Tail: 0.05
- Critical Value: 1.645

These critical values are used to determine the threshold for significance in hypothesis testing. For example, in a 95% confidence level test, the critical value is 1.96, meaning you would reject the null hypothesis if your test statistic exceeds this value.

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