I don’t get what we have to do here sorry I can’t answer it
M gknfd. Fib
Golden retrievers: 12/32
poodles: 20/32
does it need to be simplified?
Here's my interpretation: 4 whole km, plus zero tenths of a km, plus 3 hundredths of a km, plus 5 thousandths of a km.
Answer:
10
Step-by-step explanation:
5/6 ÷ 1/12 ➡ 5/6 × 12/1 = 60/6 ➡ 10
Answer:
The sample size required is at least 171
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.
What sample size is required?
A samle size of at least n is required, in which n is found when 
So






Rouding up
The sample size required is at least 171