A factory produces light bulbs with a target weight of 25 grams. The factory has observed that the weights of the light bulbs follow a normal distribution with a standard deviation of 0.5 grams. To ensure quality control, the factory randomly selects 50 light bulbs from a recent production batch and measures their weights. The sample mean weight is found to be 24.8 grams. Using a 5% significance level, test if the sample mean weight is significantly different from the target weight.

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The detailed answer for the above question is provided below The null hypothesis H0 25 the sample me... View the full answer