A study wants to compare the average temperature in August to the annual average temperature of...
A study wants to compare the average temperature in August to the annual average temperature of 65.8 F? From a sample of August data, you construct a 95% confidence interval for μ: 72.2 to 98.4. Using the confidence interval, which of the following conclusions can be made?
The average temperature in August is not significantly different from the annual average.
The average temperature in August is lower than the annual average temperature, but the difference is not significant.
The average temperature in August is significantly different from the annual average.
The average temperature in August is significantly lower than the annual average temperature.
Homework Answers
Solution:
Annual average = 65.8
The interval is,
72.2 < 
< 98.4
Therefore,
The average temperature in August is significantly different from the annual average.
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