The table below gives the number of people that bought either product A, B, or C and their gender. Use the table to complete the 95% confidence intervals.What are the answers to the following four questions?Gender/ProductProduct AProduct BProduct CTotalMale20403595Female303050110Total507085205 Get a 95% confidence interval for the percentage of females that choose product B.How many more females would you need to sample to reduce your margin of error to 3%?Get a 95% confidence interval for the percentage of Product C that are purchased by males.How many more units of product C must be sampled to reduce the margin of error to 3%? Directions 14: The table below gives the number of people that bought either product A,B, or C and their gender. Use the table to complete the 95% confidence intervals.What are the answers to the following four questions?Gender/ProductProduct AProduct BProduct CTotalMale20403595Female303050110Total5070852051. Get a 95% confidence interval for the percentage of females that choose product B.2. How many more females would you need to sample to reduce your margin of error to 3%?3. Get a 95% confidence interval for the percentage of Product C that are purchased by males.4. How many more units of product C must be sampled to reduce the margin of error to 3%?

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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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The table below gives the number of people that bought either product A, B, or C and their gender. Use the table to complete the 95% confidence intervals.

What are the answers to the following four questions?

Gender/Product	Product A	Product B	Product C	Total
Male	20	40	35	95
Female	30	30	50	110
Total	50	70	85	205

Get a 95% confidence interval for the percentage of females that choose product B.
How many more females would you need to sample to reduce your margin of error to 3%?
Get a 95% confidence interval for the percentage of Product C that are purchased by males.
How many more units of product C must be sampled to reduce the margin of error to 3%?

Directions 14: The table below gives the number of people that bought either product A,
B, or C and their gender. Use the table to complete the 95% confidence intervals.
What are the answers to the following four questions?
Gender/Product
Product A
Product B
Product C
Total
Male
20
40
35
95
Female
30
30
50
110
Total
50
70
85
205
1. Get a 95% confidence interval for the percentage of females that choose product B.
2. How many more females would you need to sample to reduce your margin of error to 3%?
3. Get a 95% confidence interval for the percentage of Product C that are purchased by males.
4. How many more units of product C must be sampled to reduce the margin of error to 3%?

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