The average amount of time, in minutes, for students to complete a standardized test is normally distributed. A data analyst takes a sample ofn=38 student times and finds a90% confidence interval to be[123.7,156.3].

What is the population parameter?

Pick The average amount of time taken on the test by all students The average amount of time taken on the test by the sample of 38 students The sample size n = 38Pick 10% confidence exists that the average time taken on the test is between 123.7 and 156.3. 90% confidence exists that the average time taken on the test is between 123.7 and 156.3. 90% of the sample data falls between 123.7 and 156.3. 90% of the students will take between 123.7 and 156.3 minutes to complete the test