A fine dining restaurant claims that the group sizes of their customers follows the following distribution:

2 people	3 people	4 people	4+ people
37%	10%	20%	33%

Gustavo, a waiter at the restaurant, would like to test this claim. He takes a sample of 87 customers and records the observed frequencies in the following table:

2 people	3 people	4 people	4+ people
34	6	20	27

a) What is the expected frequencies of each group? Fill out the table. (Round your answers to 2 decimal places, if needed.)

2 people	3 people	4 people	4+ people

(b) What is the test statistic value for this hypothesis test? (Round your answers to 2 decimal places, if needed.) TS =