Hypothesis testing and linear regression.

A packaging engineer wants to test a new method to seal snack bags. The force that is required to open the bags has the target value of $4\mathrm{.}2N($Newtons$),$ but it varies from bag to bag. The engineer randomly samples $28$ bags that are sealed using the new method and measures the force that is required to open each bag. The results are in the "Data for Wk $8$ HW$.$xlsx$"$ file.

Can the engineer state that based on the experimental data the mean opening force for the bags sealed with the new sealing method equals the target value of $4\mathrm{.}2N?$

Can the engineer state that based on the experimental data the mean opening force does not equal the target value of $4\mathrm{.}2N?$ State your null and alternative hypothesis and describe which tool in Minitab you used to develop the answer.

Can the engineer state that based on the experimental data the mean opening force is higher than

$4\mathrm{.}2$N$?$ Explain. State your null and alternative hypothesis and describe how you used Minitab to develop the answer.

Would any of the $3$ possible conclusions discussed above $($the text shown in bold font$)$ refer to:

The force needed to open any one bag?

The mean opening force for the sample of $28$ bags?

The mean opening force for the entire population of bags produced with the new sealing method?

The range of opening forces applicable to the entire population of bags produced with the new sealing method?

Is there any difference between questions $2$ and $3$ above? Explain.