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In a climate survey, it was determined that in a random sample of 25 days, the average temperature in Kalamazoo at 2:00 PM in the months of July and August is 81.21 degrees with a standard deviation of 3.089 degrees. Using this information, a 90% confidence interval for the average is (80.15, 82.27). Which of the following is the appropriate interpretation of this interval?

Question 4 options:

1)

We are certain that 90% of the days in the months of August and July will have a temperature at 2:00 PM between 80.15 and 82.27.

2)

We are 90% confident that the average daily temperature for the months of July and August at 2:00 PM is between 80.15 and 82.27.

3)

We are 90% confident that the average daily temperature for the months of July and August at 2:00 PM for the days recorded is between 80.15 and 82.27.

4)

We are 90% confident that the proportion of all days' temperatures will fall between 80.15 and 82.27.

5)

We cannot determine the proper interpretation of this interval.