Answer
Yes.
No, it is not likely.
Work Step by Step
A level of confidence of 95% means that for each 100 confidence intervals constructed, about 5 will not contain the population mean. So, if the population mean is more than 198 kilojoules, the confidence interval obtained in item (d) is one of the 5% that does not contain the population mean. But, this is not likely to occur.
