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
Answers: 3
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Fred and gene are hang gliding. fred is 700 feet above the ground and descending at 15 ft/s. gene is decending as shown in the table. interpret the rates of change and initial values of the linear functions in terms of the situations they model. show all work. freds equation is f(x)=-15x+700. ( genes is the table attached)
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Me find the answers and explain the process to find the answer of the problem appreciate it : )
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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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