Question: Q1-B Based on experience, a lab technician spends at least 3 hours to solve a problem on troubleshooting on average. A random sample of 20

Q1-B

Based on experience, a lab technician spends at least 3 hours to solve a problem on troubleshooting on average. A random sample of 20 computers with this problem is checked and found that the technician spends an average of 2.8 hours and a standard deviation of 0.14 hours to solve the problem

Q1-BBased on experience, a lab technician spends at least 3 hours to

(b ) Based on experience, a lab technician spends at least 3 hours to solve a problem on troubleshooting on average. A random sample of 20 computers with this problem is checked and found that the technician spends an average of 2.8 hours and a standard deviation of 0.14 hours to solve the problem. (i) State the appropriate statistical test related to the above case study. [1 mark] (ii) At a 5% significance level, is there enough evidence to accept the claim? [10 marks]

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