Mathematics, 23.09.2020 06:01 brobles9118

Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 6.5 parts/million (ppm). A researcher believes that the current ozone level is not at a normal level. The mean of 8 samples is 7.0 ppm with a standard deviation of 0.7. Assume the population is normally distributed. A level of significance of 0.1 will be used. Find the value of the test statistic. Round your answer to three decimal places

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Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone...