Answer:
His 95% confidence interval is (0.065, 0.155).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
For this problem, we have that:

95% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

His 95% confidence interval is (0.065, 0.155).
Answer:
she would be able to buy 6.6
Total amount needed for the video game = $200
Total amount of money saved = $68
Amount of money that is needed to be saved = 200-68 =132
So raj needs to work additional hours in order to earn the remaineder$132 for the video game
Hourly wage = $5.5
So, number of hours that Raj needs to work to earn $132 = $132/5.5 = 24 hours
Number of hours that Raj needs to work to earn the remainder of the money = 24 hours
Answer:
120 meters
Step-by-step explanation:
1.2 x 10 000 = 12000 cm = 120 meters