Hypothesis Testing 1.Imagine that the London underground official report claims that the average journey time from Heathrow to King’s Cross is about 40 minutes with a standard deviation of 10 minutes.Someone disagrees with the claim and believes th
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Hypothesis Testing 1.Imagine that the London underground official report claims that the average journey time from Heathrow to King’s Cross is about 40 minutes with a standard deviation of 10 minutes.Someone disagrees with the claim and believes th
Hypothesis Testing
1.Imagine that the London underground official report claims that the average journey time from Heathrow to King’s Cross is about 40 minutes with a standard deviation of 10 minutes.Someone disagrees with the claim and believes that the average journey time is longer.After surveying 100 randomly chosen tube passengers,the person found that,for this group,the averag journey time is 45 minutes with a standard deviation of 15 minutes.Given the results of this survey,what is the probability that this person is right?Describe carefully the steps you’ve taken to arrive at your conclusions.
Hypothesis Testing 1.Imagine that the London underground official report claims that the average journey time from Heathrow to King’s Cross is about 40 minutes with a standard deviation of 10 minutes.Someone disagrees with the claim and believes th
1.想象一下,伦敦地铁的正式报告称,从希思罗机场的平均行车时间,国王十字约40一10分钟,标准差分钟.有人不同意,认为索赔的平均行车时间较长.经过测量管随机选择100名乘客,该人发现,在这个小组,
在averag行车时间是45与15分钟的标准差分钟.鉴于这次调查的结果,是什么概率是这个人吗?仔细描述您所采取的到达你的结论的步骤.