The recommended daily dietary allowance for zinc among males older than age 50 years is 15 mg/day. A study reports the f
Posted: Wed Jul 06, 2022 12:11 pm
The recommended daily dietary allowance for zinc among malesolder than age 50 years is 15 mg/day. A study reports the followingsummary data on intake for a sample of 12 males aged 65-74 years:\overline{x}=11.3. Assuming that the true distribution for zincintake is normally distributed with variance =6.43, does the dataindicate that the average daily zinc intake in the population ofall males 65-74 falls below the recommended allowance?
Consider testing the hypotheses H0:μ=15 versus H1:μ<15 atlevel of significance α=0.05.
Below what value does \overline{x} need to be for us to rejectH0 in favor of H1? Give your answer to two decimal places.
Consider testing the hypotheses H0:μ=15 versus H1:μ<15 atlevel of significance α=0.05.
Below what value does \overline{x} need to be for us to rejectH0 in favor of H1? Give your answer to two decimal places.