this is statistics. could you explain thesenthings?

You are advised to perform the appropriate hypothesis test using pencit and paper. along with a calculator and statistical tables. and then use your working to answer the questions below. It is claimed that online shopping can lead to considerable savings in some areas. One magazfne claims that purchasing a personal computer (PC} from an orHine company results on average in savings of at least $750. A consumer group wished to test whether the claim was exaggerated, and a random sample of 43 customers who purchased a PC oniine were contacted and asked to estimate the amountthey had saved by purchasing their PC online. The mean of these 43 estimates was $732. Assume that the population standard deviation is $53. A hypothesis test is to be performed to determine whether this data provides sufcient evidence to contradict the magazine's claim at the 1 '36 level. (a) According to the null hypothesis. the value of the poputation mean is S . (Answer in the form of a whoe number wth no decimal point or decimat places.) (b) Is the test onetailed or two~tailed? Answer (answer 2 or 2) (c) To 3 decimal places the critical value of the test statisttc for this hypothesis test is: (Answer in the form moot or x.xxx) (d) To 3 decimal places the test statstic calculated from the sample is: (Answer in the form xxxx or x.xxx) (e) Is the magazine's claim contradicted at the 1% level? Answer: (Answer YES or NO) (f) Wouid it be contradicted at the 5% level? Answer: (Answer YES or NO)