Mathematics, 23.04.2020 17:48 eddyreynoso5025
An environmental researcher is concerned that a new industrial plant has made the water in a nearby stream more acidic. The pH measures the amount of acidity or alkalinity of a substance (Pure water would have a pH of 7, numbers lower than 7 indicate acids, numbers greater than 7 indicate alkaline bases). The researcher collects 40 water samples and has found an average pH of 5.9. The researcher would like to conduct a test of hypothesis to determine if the water is significantly acidic.
Select all of the correct null and alternative hypotheses
A) H0: mu = 0B) H0: mu = 7C) H0: mu cannot equal 7D) H0: mu = 0E) HA: mu cannot equal mu0F) HA: mu < 7G) HA: mu > 7H) HA: mu < 0
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Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27
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An environmental researcher is concerned that a new industrial plant has made the water in a nearby...
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