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kherson [118]
3 years ago
6

12. What is the effect when the sample size is

Mathematics
1 answer:
katrin [286]3 years ago
3 0

Confidence interval decreases, error decreases

Option: a

<u>Explanation:</u>

Increasing of sample size will decrease the width of the confidence intervals because it also decreases the standard error of the interval. So whenever the 'sample size' is increases then the 'confidence interval' decreases as well as the 'error' decreases.

Confidence interval gives us the unknown average population or percentage of the population. This gives us just how much the average rate is varying. Confidence interval gives the location as well as the precision of a measure. The smaller sample sizes gives more wider intervals.

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Por Favor! Alguém me ajuda.
Nutka1998 [239]

Answer:

The answer is A.

Step-by-step explanation:

You have to apply :

{(a  -  b)}^{2} ⇒ {a}^{2}   -  2ab +  {b}^{2}

So for this question :

{(3a - b)}^{2}

=  {(3a)}^{2}  - 2(3a)(b) +  {(b)}^{2}

= 9 {a}^{2}  - 6ab +  {b}^{2}

8 0
4 years ago
What are the four major categories of securities? How are they evaluated?
Xelga [282]

Answer:

Cash, Bonds, Stocks and Mutual funds

Step-by-step explanation:

The four major categories of securities are:  

  1. Cash
  2. Bonds
  3. Stocks
  4. Mutual funds

These 4  major categories are evaluated as given below:  

  • Cash: Cash is your normal money. You can use it to buy your everyday goods and services or invest in cash in various asset classes.
  • Bonds: Bond is debt instrument and bonds are the agreement of debt. and bonds carry coupon rate that is (interest equivalent), tenure and final capital repayment
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5 0
3 years ago
Describe the result when you solve the equation 3x-2=3x+2. :)
Elena-2011 [213]
No solution -2=2 would be the answe
4 0
4 years ago
Image attached pls help 40 points
lutik1710 [3]

Answer:

Jake:y

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cousin:y+5

the sum of all their ages:8y+5

Step-by-step explanation:

given Jake:y

His grandma is 6 times his age

so

grandma:6y

His cousin is 5 years older than

him.

so

cousin:y+5

the sum of all their ages is

y+6y+y+5

8y+5

6 0
3 years ago
Read 2 more answers
Question 6 of 10
nataly862011 [7]
Table B and Graph B is the correct answer
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3 years ago
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