)The standard error of the difference between the sample means ins

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The 9 tuataras measured at location A had a mean mass of 617.7 g with a standard deviation of 38.67 g, while the 14 tuataras measured at location B had a mean mass of 585.8 g with a standard deviation of 23.39 g.

a)The standard error of the difference between the sample means ins

2.44 g

14.33 g

83.29 g

205.23 g

b)The t statistic used to compare the two population means is

2.227

4.453

5.679

59.456

c)

To do a t test by hand, we can use the minimum degrees of freedom from the two samples. Here the degrees of freedom to be used is

8

13

21

22

 

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