(Refer to figure 4 for questions 22 and 23)

What are you assuming when conducting this type of test?

Select one:

The that the two population variances are unequal.

The that the two sample variances are unequal.

The that the two population variances are equal.

The that the two sample variances are equal.

Question23

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If you would like to conduct a left tailed test at the 0.05 significance level, what would your critical value be?

Select one:

-1.665

1.665

1.992

-1.992

Figure 4 t-Test: Two-Sample Assuming Equal Variances DomesticMpg ForeignMpg Mean 24.81395349 27.4 Variance 25.63122924 86.77647059 Observations 43 35 Pooled Variance 52.98567931 Hypothesized Mean Difference 0 df 76 t Stat -1.560551218 P(T