answer the questions below, Thanks A. An exercise equipment company developed a synthetic type of fishing rod, which is

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answer the questions below, Thanks
A. An exercise equipment company developed a synthetic type offishing rod, which is said to have an average strength of 8 kg anda standard deviation of 0.5 kg. Test the hypothesis which statesthat the average strength of the fishing rods is 8 kg with analternative greater than 8 kg if a sample of 50 rods after beingtested gives an average strength of 8.4 kg. Use a 5% significancelevel. (Hint: explain step by step).
B. Owen Lawn Care, Inc., manufactures and assembles lawnmowers that are shipped to traders throughout the United States andCanada. Two different procedures have been proposed for mountingthe engine on the lawn mower frame. The first procedure wasdeveloped by longtime Owens worker Herbs Welles (called procedure1) and the other procedure was developed by Owens' Technical VicePresident, William Atkins (called procedure 2). To evaluate the twomethods, it was decided to conduct a time and motion study. Thesample of five workers was measured using the Welles method and sixworkers using the Atkins method. The result in minutes is asfollows. Welles (minutes)2, 4, 9, 3, 2 Atkins (minutes) 3,7,5,8,4,3 The question is: Is there a difference in the average time toinstall the engine on the mower frames? Use a 10% significancelevel. (Hint: explain step by step)