Suppose Mera wants to estimate the average electric consumption (in kWh) of another barangay, Lalakbay. Based on the previous studies, the monthly electric consumption of households in Lalakbay follows the normal distribution with a standard deviation of 95 kWh. At 95% level of confidence, how many households should he sample so that the estimated average electric consumption will be within 20 kWh from the true value? 62 O 73 87 O245

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