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Help me solve please 1. A Mayor claims that the residents in the Caribbean community in which he serves earn, on average, 60 thousand dollars

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1. A Mayor claims that the residents in the Caribbean community in which he serves earn, on average, 60 thousand dollars (US$) per year. A resident disagrees with this claim and decided to conduct a survey of 85 residents in the community to gather data on their annual income. The data was inputted into MINITAB for analysis. Exhibit 3 below was generated by MINITAB. Exhibit 3. One-Sample Z: Income level Test of u - 60 va -/ 60 The assumed standard deviation - 16.84 Variable N Mean StDev SE Mean 95% CI 2 P Income level 85 55.66 16.84 (52 . 08, 59.24) (0 State the null and the alternative hypotheses for this test. [2 marks] (ii) Calculate the missing values "* **"and *#*" [6 marks] (iii) Using a 5% level of significance, what is the conclusion for this test? Justify your answer. [3 marks] (iv) Interpret "95% CI = (52.08, 59.24)" as indicated in Exhibit 3. [3 marks]

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