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2 Statistics

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Question 256

A systems engineer is evaluating the signal latency of two satellite transmission protocols, Protocol P\mathcal{P}P and Protocol Q\mathcal{Q}Q. They suspect that Protocol P\mathcal{P}P results in a significantly lower mean latency than Protocol Q\mathcal{Q}Q. A random sample of 80 transmissions using Protocol P\mathcal{P}P yielded a mean latency of 124.5 ms with a standard deviation of 12.4 ms. A second random sample of 100 transmissions using Protocol Q\mathcal{Q}Q yielded a mean latency of 128.2 ms with a standard deviation of 15.6 ms.

Stating your hypotheses clearly and using a 1% level of significance, determine whether there is sufficient evidence to support the engineer's suspicion.

[8]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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