Complete the steps needed in solving the t test of the given statement. For Step 3: t computed, no need to show your solution, answer only, and for Step 4: Decision rule, no need to draw for the graph of the normal curve, just indicate whether the null hypothesis will be rejected or not. 1.) A survey of the National Capital Region finds the average commute time of employees on one way is 45 minutes. The Makati Chamber of Commerce feels that in their city it is greater and want to publicize this. They randomly selected 28 commuters and found the average is 50 minutes witha standard deviation of 6 minutes. At a = 0.05, are they correct? Solution: Step l: State the hypotheses. Ho: Hi: Step 2 : The level of significance and critical region. a= df= and teritical= Step 3: Compute for the value of one sample t-test. tcomputed= Step 4: Decision rule. Step 5.Conclusion. 2.) The average pre-school cost or tuition fees last year was P17,250. The following year, 20 institutions had a mean of Pl6,150 and a standard deviation of 2,250. ls there sufficient evidence at a 0.10 level of significance to conclude that the mean cost has increased? Solution: Step l: State the hypotheses Ho= h1= Step 2: The level of significance and critical region. a= df= and teritical= Step 3: Compute for the value of one sample -test. computed - Step 4: Decision rule. Step 5: Conclusion