Question: Please help for test A researcher wants to test the hypothesis that childhood exposure to advertising exceeds 102 ads per day. Randomly selecting 48 days,

Please help for test

A researcher wants to test the hypothesis that childhood exposure to advertising exceeds 102 ads per day. Randomly selecting 48 days, they calculated the sample mean, and they know the population standard deviation. The researchers should use the following distribution: 0 Chi-squared distribution 0 Student-t distribution 0 normal (2) distribution 0 Binomial distribution 0 She cannot perform the test as the population standard deviation is not available

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