What qualifies as a suspected disease outbreak?

I went online and I found out that I'm a visual learner. I tried to outline the textbook but I found that frustating and time co

Kobotan [32]

Mindmap would be great for you than ! ;)

3 0

3 years ago

Read 2 more answers

company manufactured six television sets on a given day, and these TV sets were inspected for being good or defective. The resul

lana [24]

Sampling distribution involves the proportions of a data element in a given sample.

The proportion of Good TV set is 0.67
The number of ways of selecting 5 from 6 TV sets is 6
The number of ways of selecting 4 from 6 TV sets is 15

Given

$n = 6$

Sample Space = Good, Good, Defective, Defective, Good, Good

(a) Proportion that are good

From the sample space, we have:

$Good = 4$

So, the proportion (p) that are good are:

$p = \frac{Good}{n}$

$p = \frac{4}{6}$

$p = 0.67$

(b) Ways to select 5 samples (without replacement)

This is calculated using:

$^nC_r = \frac{n!}{(n - r)!r!}$

Where

$r = 5$

So, we have:

$^6C_5 = \frac{6!}{(6 - 5)!5!}$

$^6C_5 = \frac{6!}{1!5!}$

$^6C_5 = \frac{6 \times 5!}{1 \times 5!}$

$^6C_5 = \frac{6}{1}$

$^6C_5 = 6$

Hence, there are 6 ways

(c) All possible sample space of 4

First, we calculate the number of ways to select 4.

This is calculated using:

$^nC_r = \frac{n!}{(n - r)!r!}$

Where

$r = 4$

So, we have:

$^6C_4 = \frac{6!}{(6 - 4)!4!}$

$^6C_4 = \frac{6!}{2!4!}$

$^6C_4 = \frac{6 \times 5 \times 4}{2 \times 1 \times 4!}$

$^6C_4 = \frac{30}{2}$

$^6C_4 = 15$

So, the table is as follows:

$\left[\begin{array}{ccc}TV&Good&Proportion\\1,2,3,4&2&0.5&2,3,4,5&2&0.5&3,4,5,6&2&0.5\\4,5,6,1&3&0.75&5,6,1,2&4&1&6,1,2,3&3&0.75\\1,2,3,5&3&0.75&3,5,6,2&3&0.75&1,3,4,5&2&0.5\\1,3,4,6&2&0.5&1,4,5,2&3&0.75&2,4,6,1&3&0.75\\2,4,6,3&2&0.5&2,4,6,5&3&0.75&3,5,6,1&3&0.75\end{array}\right]$

The proportion column is calculated by dividing the number of Good TVs by the total selected (4) i.e.

$p = \frac{Good}{n}$

(d) The sampling distribution

In (a), we have:

$p = 0.67$ --- proportion of Good TV

The sampling error is calculated as follows:

$SE_n = |p - p_n|$

So, we have:

$\left[\begin{array}{ccc}TV&Good&SE\\1,2,3,4&2&0.17&2,3,4,5&2&0.17&3,4,5,6&2&0.17\\4,5,6,1&3&0.08&5,6,1,2&4&0.33&6,1,2,3&3&0.08\\1,2,3,5&3&0.08&3,5,6,2&3&0.08&1,3,4,5&2&0.17\\1,3,4,6&2&0.17&1,4,5,2&3&0.08&2,4,6,1&3&0.08\\2,4,6,3&2&0.17&2,4,6,5&3&0.08&3,5,6,1&3&0.08\end{array}\right]$

Read more about sampling distributions at:

brainly.com/question/10554762

3 0

3 years ago

1. Jesus' early followers believed that people who were not ? could not take part in God's ?

Mashcka [7]

The answers are disciples

3 0

3 years ago

Why do students find it difficult to apply knowledge in practical life ?.

Strike441 [17]

Answer:

because students con theories

4 0

2 years ago

6. List four strategies you should follow while taking a standardized test. (4

worty [1.4K]

Answer:

There's no hard and fast rule, but this is a general list of things you could do, based off of my years of taking standardized tests.

1. Check the number of questions and the type of questions.

2. Allocate certain timeframes to finish each type of question, and ensure that you stick to it. Leave at least 15 minutes to check your work, especially if the paper is more than one hour.

3. Really read the information behind a question BEFORE you attempt it.

4. Answer the easiest questions first.

Explanation:

1. Check the number of questions and the type of questions.

You might be wondering why you should bother to do this step. Not only does it help you have a better idea of the timeframe to allocate to each question, it also just gives you a breeze through of what you'll be dealing with for the next hour or few hours.

2. Allocate certain timeframes to finish each type of question, and ensure that you stick to it. Leave at least 15 minutes to check your work, especially if the paper is more than one hour.

So how do you allocate time? Generally, the rule of thumb is to divide the number of questions by the time you have. However, don't do this.

Firstly, subtract the time you want to leave for checking from the time limit.

For Multiple Choice Questions (really depends on the time limit), you might want to generally give yourself 3 minutes to answer each question.

Short-answer questions, perhaps 5 - 7 minutes.

Long-answer questions, 10 - 20 minutes.

3. Really read the information behind a question BEFORE you attempt it.

This sounds obvious, but you'd be surprised how many people get questions wrong just because they didn't read the question properly.

4. Answer the easiest questions first.

Some people think you should allocate all your time to the difficult questions because you can just do the easy ones later right? No. Do the easy ones first. Make sure you have those marks and don't leave it to chance. If a question is too hard, forget it, mark the question number down somewhere and move on to ones you know you can answer.

5 0

3 years ago