Answer:
no enough evidence to draw up a conclusion
Step-by-step explanation:
Data:
let:
= decay after 2 weeks
= decay after 16 weeks
Making the hypotheses:
Null hypothesis; 
the deviation = 0.05
the standard difference = 4
Conditions:
The normal distribution curve can be plotted on a graph and the plot shows that the distribution is a skewed distribution.
Then,

Therefore, it can be concluded that 0.1983 > 0.05. This presents our failure to reject the null hypothesis.
Thus, there is not enough evidence to conclude that polyester decays more in less than 2 weeks.
Answer:
<em>She can fill 19 pots.</em>
Step-by-step explanation:
Yao Xin puts
liters of potting soil in each pot.
Suppose, the number of pots Yao Xin can fill is 
So, <u>the total amount of potting soil</u> in
number of pots will be:
liters.
Given that, she has
liters of potting soil. So, the equation will be........
So, she can fill pots.
Answer:
i- umm- its, well i got two answers n this question as well, but umm, i think its
1 5/12 maybe
Step-by-step explanation: