Complete question :
Cyber Monday Shopping A survey of 1000 U.S. adults found that 33% of people said that they would get no work done on Cyber Monday since they would spend all day shopping online. Find the 95% confidence interval of the true proportion.
Answer:
(0.301 ; 0.359)
Step-by-step explanation:
Sample size, n = 1000
Phat = 0.33
(1 - phat) = 1 - 0.33 = 0.67
Zcritical at 95% = 1.96
Confidence interval :
Phat ± margin of error
Margin of Error = Zcritical * sqrt[(phat(1 - phat)) /n]
Margin of Error = 1.96 * sqrt[(0.33 * 0.67) / 1000]
Margin of Error = 1.96 * 0.0148694
Margin of Error = 0.0291440
Lower boundary = (0.33 - 0.0291440) = 0.300856
Upper boundary = (0.33 + 0.0291440) = 0.359144
(0.301 ; 0.359)
Answer:
4 and 5
Step-by-step explanation:
n + 1 > 4
n > 4 - 1
n > 3
For the set { 1, 2 , 3 , 4, 5 }, 4 and 5 are greater than 3.
Hence, 4 and 5 makes the inequality n + 1 > 4 true.
Answer:
r=(a/b)-1
Step-by-step explanation:
a=b(1+r)
a/b = 1+r
r=(a/b)-1
The dimensions are 11 meters by 6 meters
Answer:
this answer is for functional value only
