Novoair is one of the premium private airline companies in Bangladesh. In a recent survey it was found that the average hourly wages of Novoair maintenance crew members is Tk. 89, with a standard deviation of Tk. 18. Assume that the hourly wages of maintenance crew members follow a normal distribution. a. What is the probability that a randomly selected crew member earns more than Tk. 111 per hour? Answer in exact fraction, or rounded to at least 4 decimal places. b. What is the probability that a randomly selected crew member earns between Tk. 85 and Tk. 129 per hour? Answer in exact fraction, or rounded to at least 4 decimal places. c. Junior crew members are considered for promotion after their hourly wages cross a certain threshold. What should the threshold wage be if Novoair does not want to promote any more than 95.59% of junior crew members? Answer in exact fraction, or rounded to at least 2 decimal places. Taka Activate Wi

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.