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.
The recommended daily dietary allowance for zinc among males older than age 50 years is 15 mg/day. A study reports the f
-
answerhappygod
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am