Answer:
B is the better detergent
Step-by-step explanation:
If A has a lower number on the 1-10 scale, that means on average it was closer to the lower end, or the least clean end. This means that A cleans worse than B., and B is better.
The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.
<h3>What is the chi-squared test statistic?</h3>
Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.
The formula for the chi-squared test statistic is;
![\sum \frac{(O_i-E_i)^2}{E_i } \\\\](https://tex.z-dn.net/?f=%5Csum%20%5Cfrac%7B%28O_i-E_i%29%5E2%7D%7BE_i%20%7D%20%5C%5C%5C%5C)
Where,
is the observed value
is the expected value
The chi-square test statics is;
![\rm( \frac{18-18}{18} )^2 +( \frac{14-18}{18} )^2 + (\frac{24-18}{18} )^2+( \frac{16-18}{18} )^2 \\\\ 0+ \frac{16}{18}+ \frac{36}{18} +\frac{4}{18}\\\\ \frac{56}{18} \\\\ 3.11](https://tex.z-dn.net/?f=%5Crm%28%20%5Cfrac%7B18-18%7D%7B18%7D%20%29%5E2%20%2B%28%20%5Cfrac%7B14-18%7D%7B18%7D%20%29%5E2%20%2B%20%28%5Cfrac%7B24-18%7D%7B18%7D%20%29%5E2%2B%28%20%5Cfrac%7B16-18%7D%7B18%7D%20%29%5E2%20%5C%5C%5C%5C%200%2B%20%5Cfrac%7B16%7D%7B18%7D%2B%20%5Cfrac%7B36%7D%7B18%7D%20%2B%5Cfrac%7B4%7D%7B18%7D%5C%5C%5C%5C%20%5Cfrac%7B56%7D%7B18%7D%20%5C%5C%5C%5C%203.11)
Hence, the chi-squared test statistic will be 3.11.
To learn more about the chi-squared test statistic refer;
brainly.com/question/14082240
#SPJ1
What we know here is that all 2500 shares together are worth 100 000 dollars in total. (it's 100 000.00 actually, but we can ignore the part after the point, as it's equal to 0).
This means that each of the shares is valid the whole sum divided by the number of shares, that is:
(first i divided both denominator and numerator by 100)
So each value is worth 40 dolars.
Answer:
- 16. 3/8
- 17. 1/8
- 18. 5/18
- 19. 0
- 20. 1
Step-by-step explanation:
<u>As per the spinner we have:</u>
- Green = 1/2 - 1/16 = 7/16
- Red = 1/4
- Purple = 1/8
- Orange, blue, yellow = 1/16
<u>16. P(red, yellow, blue) = ?</u>
- P = 1/4 + 1/16 + 1/16 = 3/8
<u>17. P(orange, yellow) = ?</u>
<u>18. P(green, blue, purple) = ?</u>
- P = 7/16 + 1/16 + 1/8 = 10/16 = 5/8
<u>19. P(pink) = ?</u>
<u>20. P(red, orange, yellow, green, blue, purple) = ?</u>
- P = 1 as all possible colors selected
The answers you are looking for are:
A.) 199580
B.) 114002
C.) 48042
D.) 5828
E.) 18510
Hope that helps!!
Have a wonderful day!!