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1 4. If A=1 7 0 05 - 4 0 5 0 , then the eigenvalues of A are -2 / (a) 1,2 and -4. (b) 0,1 and -2. (c) 2,3 and 5. (d) -2,3, and 5. (e) None of above
13. lim ( x2 - 6x โ x) equals x-1-00 (a) 0 (b)-00 (c)-3 (d) 0 (e) 3
Consider the following hypothesis test:
H0: ยต = 20Ha: ยต < 20A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2.a. Compute the value of the test statistic (to 2 decimals).b. What is the p-value (to 3 decimals)?c. Using a = .05, can it be concluded that the population mean is less than 20?d. Using a = .05, what is the critical value for the test statistic?e. State the rejection rule: Reject H0 if z is the critical value.f. Using a = .05, can it be concluded that the population mean is less than 20
