Answer:
Kindly check explanation
Step-by-step explanation:
To construct confidence interval for difference in proportion ; the following conditions must be met :
1.) The selected samples must have been randomly chosen or selected from a larger population. This is essential in other to eliminate bias.
Each group of samples must be independently chosen. That is, the samples of bug customers chosen must be independent of the sample of small customers selected.
The population from which the samples are drawn must be considerably larger than the sample size. Sample size, n should be ≤ 10% of the population size.
p1 = 160 / 200 = 0.8 ; (1 - p1) = 0.2
p2 = 120 / 300 = 0.4 ; (1 - p2) = 0.6
(p1 - p2) ± Zcritical * sqrt[(p1(1 - p1) /n1) + (p2(1 - p2) / n2)]
Answer:
1/4
Step-by-step explanation:
Just divide the paper that is 1 by 4.
We have been given that Jenna saves $3 for every $13 dollars she earns. Vanessa saves $6 for every $16 she earns.
We can compare the ratios of saved money to earned money by Jenna and Vanessa as:
Let us simplify our equation.
We can see that 
, therefore, Jenna's ratio of money saved to money earned is not equivalent to Vanessa's ratio of money saved to money earned.
Answer:
c; 1 / (a^12)(b^8)
Step-by-step explanation:
when the exponent is outside a number you multiply the outside exponent by the inside exponent
so far after multiplying exponents you have
a^-12 / b^8
but you must put the 12 on the bottom so that all exponents can be positive
1 / (a^12)(b^8)
First u need to convert 3/5 to miles
Then u should be able to figure out how many miles Jenna ran
I hope this helped u I don’t wanna give the answer because I can’t convert currently
