Of the 800 participants in a marathon, 120 are running to raise money for a cause. How many participants out of 100 are running
2 answers:
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Answer:
a) 95% confidence interval for the population proportion of all young adults in Kentucky who received help from their parents.
( 0.0761 , 0.3239)
b) Margin of error = 0.1264.
Step-by-step explanation:
<u>Explanation</u>:-
Given '8' persons in a random sample of 40 young adults who recently purchased a home in Kentucky received help from their parents.
sample proportion of success
q = 1=p
q = 1-0.2 = 0.8
a)
95% confidence interval for the population proportion of all young adults in Kentucky who received help from their parents.
(0.2 - 0.1239,0.2+0.1239)
( 0.0761 , 0.3239)
b) the margin of error for a 95% confidence interval for the population proportion.
For the 95% confidence interval ∝= 0.05 and zₐ = 1.96≅2.
Margin of error for a 95% confidence interval for the population proportion.
Margin of error = 0.1264.
Answer:
There are 13 years 6 months and 12 days.
Step-by-step explanation:
Let's convert the scientific notation to standard form of minutes
7.01568x10^6 =7015680 minutes
Now, let's convert this to number of days because each day has 24*60=1440 minutes.
So, number of days in 7015680 minutes is =4872 days
Now, change this 4872 days to years, months and days.
We know 1 year has 12 months and one month has 30 days.
So,
Number of years ==13.53333333 years
Now, convert 0.53333333 years to months.
0.53333333*12=6.4 months.
Now, convert 0.4 months to days.
0.4* 30 =12 days.
So, there are 13 years 6 months and 12 days.