Respuesta :

Using a t-distribution calculator, it is found that the critical value of the test statistic t is [tex]t^{\ast} = -1.383[/tex].

How to find the critical value of a t-test?

  • The critical value is found using a calculator.

The inputs are:

  • The tail.
  • The amount of degrees of freedom, which is one less than the sample size.
  • The significance level.

In this problem, we have a lower(left-tailed) test, with 10 - 1 = 9 df and a level of significance of 0.1, hence the critical value is [tex]t^{\ast} = -1.383[/tex].

You can learn more about the t-distribution at https://brainly.com/question/26062194

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