An Internet service provider is interested in testing to see if there is a difference in the mean weekly connect time for users who come into the service through a dial-up line, DSL, or cable Internet. To test this, the ISP has selected random samples from each category of user and recorded the connect time during a week period. The following data were collected: 
Assuming that the test is to be conducted at a 0.01 level of significance, what would the critical value be for this test?
Definitions:
Psychological Laboratories
Facilities equipped for experimental and research purposes in the field of psychology.
Stanford Achievement Test
A standardized test designed to measure the academic knowledge and skills of students in grades K through 12.
Reaction Time
The amount of time it takes an individual to respond to a particular stimulus.
Language Ability
The capacity to understand, interpret, and communicate through language, encompassing both spoken and written forms.
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