Determine which is the appropriate approach to conduct a hypothesis test. Claim: The AI, or Adequate Intake of water, for pregnant women is a mean of 3L/d, liters per day. Sample data: nequals200, x overbar equals2.5, sequals1. The sample data appear to come from a normally distributed population with sigma equals1.2.

One sample z-test for population mean would be the best approach to conduct a hypothesis test.

Step-by-step explanation:

Following is the data available to us:

Mean amount of water = u = 3

Sample mean = x = 2.5

Sample Size = n = 200

Sample Standard Deviation = s = 1

Population Standard Deviation = = 1.2

Population is normally distributed.

We need to find the best approach to conduct a hypothesis test. Since only one sample is involved, it is a One-Sample test about population mean. for conducting hypothesis test for One-Sample about population mean we have following two options:

Selecting the best approach:

The first thing to check is if our data from a population which is normally distributed. Which in this case is. Next we check if the value of population standard deviation is known or unknown. the rule is:

Since, in this case we know the value of Population Standard Deviation which is 1.2, One sample z-test for population mean would be the best approach to conduct a hypothesis test.

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.