Answer:
Hours Wages = $7.5 / Hour
Since we do not know the tips , let us assume it is x
Carmen Worked 24 hours
Total amount she earned = (24*7.5) + x = 250
180 + x = 250
x = 250-180 = 70
Carmen should earn tips more than $ 70 in 24 hours in order her to receive more than $250 in that week
Explanation:
Based on the information given, the interpretation of the confidence level will be that ninety percent of the time, the procedure used to generate this interval will capture the true proportion of teenagers who drive their own car to school.
<h3>
What is confidence level?</h3>
A confidence level simply means the percentage of probability that then m confidence interval will contain the true population parameter when the person draws a random sample.
It should be noted that a 90% confidence interval means a range of values that the person is 90% sure contains the true mean of the population.
Learn more about confidence level on:
brainly.com/question/15712887
