Installing a muffler at Barut Garage, Inc. involves a five work tasks. Azra has timed workers performing these tasks seven times, with the resulte (in minutes) shown in the following table Given that Azra does not want an error of more than 0.07 and a confidence level less than 0.85 answer the following: Provide the z-score:Blank 1 Round to the nearest hundredth, for example 4.22 Does the number of observations for the following tasks warrant such confidence level? Enter YES or NO. Task \# 3 Install new muffler :Blank 2 Task \# 5 Complete paperwork What are the required numbers of observations for these tasks? Enter the number. Assume that the number of observations for the following tasks justifies the confidence level and accuracy mentioned above. Also note that Azra factors in a total of fatigue and personal allowance of 0.05 applied to job time. Provide the following results from vour solution: Provide the total standard time* for the whole job: Blank 10 minutes. *Round to the nearest hundredth, for example 8.45 minutes