Feedback for Indian handloom industry has a very distinct place in the culture of India and on the verge of extinction. To revive this industry government is looking for revival package, for this purpose your firm is appointed for data analysis. Government records stats that newly joined worker takes an average 90 days to get grip on the operation of handloom. You want to check that this mean time taken by the new worker is the same or different. Based on the random selection of 25 workers average came out to be 85 days with the standard deviation of 7 days. Find out the conclusion based on hypothesis testing theory where alpha = 5%.