Civil engineers record the amount of salt in tons used to keep highways in good condition during a snow storm. The amount of salt for n = 30 has (image 1) A) Perform a hypothesis test with the intention of showing that the average salt used during a snowstorm is less than 2000 tons. Consider alpha = 0.05 B) Based on your conclusion from the previous item, what kind of mistake could you make? Explain

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Q: TABLE 10.22 Number of children with olonhea at 2 weeks of follow-up Number of chldren with otonhea…

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A: Given that Sample size n =200 Favorable cases x =65 Sample proportion p^=x/n  =65/200 =0.325

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A: Given:  a) mu=6.3 , σ=0.2 b) mu=22.15, σ=1.94

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Q: 1. If Beta = 0.26, what is the power of the test? * %3D O 0.74 O0.84 O 0.26 O 1-alpha

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A: Given,   Sample size = 52 Sample mean = 148928 Sample standard deviation = 77.6