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Below is the solution:
(a) <span>x bar = 3.
</span><span>n = 1
</span><span>std = 0.2
</span><span>z value = 1.645
</span>
<span>3 plus/minus 1.645 (0.2/(sqrt1))
</span>
<span>Interval = [3.07, 3.73]</span>
According to a continuous study conducted by the NASA's Goddard institute, the Earth's average global temperature has risen by 0.8 degrees Celsius or 1.4 degrees Fahrenheit since 1880. Since the beginning of the Industrial Revolution, the thermometer readings have risen continuously.
