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The mean arrival rate of flights at O'Hare Airport in marginal weather is 195 flights per hour with a historical standard deviation of 15 flights. To increase arrivals, a new air traffic control procedure is implemented. In the next 30 days of marginal weather, the mean arrival rate is 197 flights per hour. 221 191 213 217 220 189 202 206 183 177 199 192 180 201 205 184 186 221 191 197 183 183 202 208 171 206 223 201 175 183 Picture Click here for the Excel Data File (a) Set up a right-tailed decision rule at α = .025 to decide whether there has been a significant increase in the mean number of arrivals per hour. Choose the appropriate hypothesis. a. H1: μ > 195, reject H1 if z < 1.960 b. H1: μ < 195, reject H1 if z > 1.960 c. H0: μ ≥ 195, reject H0 if z < 1.960 d. H0: μ ≤ 195, reject H0 if z > 1.960 a b c d (b-1) Calculate the test statistic. (Round your answer to 2 decimal places.) Test statistic.

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Financial Management, Finance

Category:- Financial Management
Reference No.:- M92769218

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