At one school, the average amount of time tenth-graders spend watching television each week is 21.6 hours. the principal introduces a campaign to encourage the students to watch less television. one year later, the principal performs a significance test using α = 0.05 to determine whether the average amount of time spent watching television per week has decreased. the hypotheses are: h0: μ = 21.6 hours ha: μ < 21.6 hours if the p-value = 0.04 and a decision error is made, what type of error is it? explain.

Read the following paragraph, and choose the best revision for one of its sentences.dr. blake is retiring at the end of the month. there will be an unoccupied office upon his departure, and it is big in size. because every other office is occupied, we should convert dr. blake’s office into a lounge. it is absolutely essential that this issue is discussed at the next staff meeting. (a) because every other office is occupied, it’s recommended that we should convert dr. blake’s office into a lounge. (b) because every other office is filled, we should convert dr. blake’s office into a lounge.