A company claims that the mean monthly salary for their managers is 11 thousand dollars. A sample of 100 managers has a mean monthly salary of 10.8 thousand dollars with a standard deviation of 1.2 thousand dollars. You want to perform a hypothesis test challenge the validity of the claim made by the company, at a significance level of a = 0.10. Your hypotheses are: H.: µ = 11, 000 Ha:µ < 11, 000 (a) Find the test statistic, rounded to 4 decimal places. Test Statistic = (b) Flnd the p-value, rounded to 4 decimal places. p-value =

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A: Mean and standard deviation calculations:-     Hypothesis Test:-