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time of students

  • From Mathematics, Statistics
  • Due on 27 Oct, 2020 09:05:00
  • Asked On 27 Oct, 2020 09:09:54
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1) The time that students spend studying per week is normally distributed with a mean of 8.4 hous and stadard deviation of 2.7 hours. Find te probability that the mean time spent studying pere week for a random fo 45 students would be less than 8 hours .

2) A survey of corporations showed that 64% of them offer retirement plna to theri employees. In a sample of 50 sycg corporations that offer retimrent plans to theri employees, find the probability that the sample proportion will be greater than 71%.

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[Solved] Mathematics, Statistics

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  • Submitted On 27 Oct, 2020 11:02:17
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1. The time that university students spend studying per week has a distribution that is skewed to the right with a mean of 8.4 hours and a standard deviation ...
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