For a 60% confidence interval, the number of cis that we expect to contain the true mean is of 60% of the total amount.
The interpretation of a x% confidence interval it is x% likely that the population parameter(mean/proportion/standard deviation) is between a and b, which are the bounds of the confidence interval.
The bounds a and b of the confidence interval are given by the estimate plus/minus the margin of error.
The interpretation also means that out of n samples, the percentage which are expected to contain the true mean is of x, hence the percentage for this problem is of 60%, as it is the confidence level.
The problem is incomplete, hence only the first part could be answered.
More can be learned about confidence intervals at https://brainly.com/question/17073112
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