Get the information you need with the help of IDNLearn.com's extensive Q&A platform. Ask any question and receive timely, accurate responses from our dedicated community of experts.
Sagot :
Answer:
(a) Normal model
[tex](b)\ Mean = 0.58[/tex]
[tex](c)\ \sigma = 0.0165[/tex]
Step-by-step explanation:
Given
[tex]p = 58\%[/tex]
[tex]n = 900[/tex]
Solving (a): The distribution type
The sample follows a normal model
Solving (b): The mean
This is calculated as:
[tex]Mean = p[/tex]
So, we have:
[tex]Mean = 58\%[/tex]
Express as decimal
[tex]Mean = 0.58[/tex]
Solving (c): The standard deviation
This is calculated as:
[tex]\sigma = \sqrt{\frac{p(1 - p)}{n}}[/tex]
So, we have:
[tex]\sigma = \sqrt{\frac{58\%(1 - 58\%)}{900}}[/tex]
Express as decimals
[tex]\sigma = \sqrt{\frac{0.58(1 - 0.58)}{900}}[/tex]
[tex]\sigma = \sqrt{\frac{0.58 * 0.42}{900}}[/tex]
[tex]\sigma = \sqrt{\frac{0.2436}{900}}[/tex]
[tex]\sigma = \sqrt{0.00027066666}[/tex]
[tex]\sigma = 0.0165[/tex]
Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. For clear and precise answers, choose IDNLearn.com. Thanks for stopping by, and come back soon for more valuable insights.