For a confidence level of 98% with a sample size of 30, find the critical t value.

The critical t value is 2.184.

Step-by-step explanation:

We have to find the critical t value for a confidence level of 98% with a sample size of 30.

As we know that in the t table there are two columns. The horizontal column is represented by the symbol P which represents the level of significance and the vertical column is represented by the symbol '' which represents the degrees of freedom.

So, here the level of significance = 1 - confidence level

                                                       = 1 - 0.98 = 0.02

And the degrees of freedom = n - 1

                                                = 30 - 1 = 29

Now, in the t table, the critical value of t at P = 2% and 29 degrees of freedom is 2.184.

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