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There is a 99% confidence interval for the weight loss of men over the age of 30 after camping for a month to have a

There is a 99% confidence interval for the weight loss of men over the age of 30 after camping for a month to have a width of 0.1. Given that 0.1 width of confidence interval is estimated in the sample with the variance of 0.09 kg. Assume that the weight loss of all men follows a normal distribution. Determine the sample size that is required for this situation. (5 marks)

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