State the Critical Value(s)for a T Test Using a Two-Tailed

question 21

Multiple Choice

State the critical value(s) for a t test using a two-tailed test at a .05 level of significance: t(20) .

• A) ±1.725
• B) ±2.093
• C) ±2.086
• D) ±0.687

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Definitions:

Air Temperatures

Refer to the current state of the atmosphere's warmth, measured in degrees Celsius or Fahrenheit.

Climate Change

Long-term significant changes in the averages of climate patterns or in the distribution of weather events over periods ranging from decades to millions of years.

Long Wave Radiation

Thermal radiation emitted by the Earth and its atmosphere back into space; it has a longer wavelength compared to solar radiation.

Insolation Reflected

The portion of incoming solar radiation that is reflected back into the atmosphere by the Earth's surface or clouds.