# One sample t test

I am stumped on the following problem and could use some help quickly. Please provide guidance on how to solve the problem.

1) The probability of default on a certain type of commercial loan is 0.10. If a bank makes 100 of these loans, what is the probability that at least 16 will default?

A) 0.0475

B) 0.0228

C) 0.0336

D) 0.4664

2) For a one-tailed test of hypothesis for a single population mean with 13 degrees of freedom, the value of the test statistic was 1.863. The p-value is

A) between .05 and .025.

B) between .10 and .05

C) greater than .10

D) less than .001.

https://brainmass.com/statistics/students-t-test/one-sample-t-test-example-problems-235944

#### Solution Summary

The solution provides step by step method for the calculation of test statistic for t test. Formula for the calculation and Interpretations of the results are also included.

$2.19