The answer is 8.4>8.09>.89>.5=.50
Answer:
5 ( x + 69)/4
Step-by-step explanation:
Answer:
We are confident at 99% that the difference between the two proportions is between
. And since the confidence interval cotains the value 0 we don't have enough evidence to conclude that we have significant differences between the to proportions in these two cities
Step-by-step explanation:
represent the real population proportion for 1
represent the estimated proportion for 1
is the sample size required for 1
represent the real population proportion for 2
represent the estimated proportion for 2
is the sample size required for 2
represent the critical value for the margin of error
The confidence interval for the difference of two proportions would be given by this formula
For the 99% confidence interval the significance is
and
, and the critical value using the normal standard distribution.
Replacing we got:
We are confident at 99% that the difference between the two proportions is between
. And since the confidence interval cotains the value 0 we don't have enough evidence to conclude that we have significant differences between the to proportions in these two cities
It’s 1/5 just put hem all together
Answer:
original price was 64 dollars
Step-by-step explanation: