Unit 0 Review

SE refers to the...

• mean

• standard deviation

• standard error of the mean

• chi square

• sample mean

• square root of all values

• sum of all values

• sample size

Degrees of freedom is calculated by

• dividing the standard deviation by the square root of the sample size

• subtracting one from the sample size

• adding together all values and dividing by the sample size

• squaring the difference between the observed and expected values

The mean value of a data set is calculated by...

• dividing the standard deviation by the square root of the sample size

• subtracting one from the sample size

• adding together all values and dividing by the sample size

• squaring the difference between the observed and expected values

The middle number in a set of data is called the...

• mean

• standard deviation

• median

• mode

What is the standard error of the optimum soil temperature for germination rate?

• 1.78

• 0.91

• 2.89

• 5.34

Find the degrees of freedom.

• 4
• 5
• 6
• 7

This symbol denotes the null hypothesis

• Null hypothesis

• Alternative Hypothesis

• H₀

• H_a

This symbol denotes the alternative hypothesis

• Null hypothesis

• Alternative hypothesis

• H₀

• H_a

The null and alternative hypothesis can be the same.

• Yes

• No

• Maybe

• All the above