Answer:
48÷4=12(for 1 ticket)
12×11=132
The cost of 11 tickets is 132
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Answer:
Step-by-step explanation: 2 x2 =4
i am guessing it means 2 to the power of 2
Answer:
The 99 percent confidence interval for the proportion of all employees at the company who own an electric car is (0.0104, 0.0496).
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 .
In a random sample of 500 employees, 15 reported owning an electric car.
This means that
99% 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:
The 99 percent confidence interval for the proportion of all employees at the company who own an electric car is (0.0104, 0.0496).