Find the critical value x2r corresponding to a sample size of 19 and a confidence level of 99% if the test is two-tailed

For this problem we are assuming that the confidence level is 99% or 0.99, then the significance level would be then the value of and the degrees of freddom are given by:

Then the critical values for this case are:

Step-by-step explanation:

For this problem we are assuming that the confidence level is 99% or 0.99, then the significance level would be then the value of and the degrees of freddom are given by:

Then the critical values for this case are:

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

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step-by-step explanation:

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