A new factory is being built in a densely populated resident…

A new factory is being built in a densely populated residential area. The factory plans to produce chemicals that are known to be harmful to human health and the environment. Local residents are concerned about potential air pollution, water contamination, and noise pollution.How can environmental health standards and legislation be integrated to achieve sustainable development?

Find the test statistic, t, to test the hypothesis that = ….

Find the test statistic, t, to test the hypothesis that = . The sample statistics are given below.     n1{“version”:”1.1″,”math”:”n1″} = 25            n2{“version”:”1.1″,”math”:”n2″} = 30    x¯1{“version”:”1.1″,”math”:”x¯1″} = 21            x¯2{“version”:”1.1″,”math”:”x¯2″} = 19    s1{“version”:”1.1″,”math”:”s1″} = 1.5            s2{“version”:”1.1″,”math”:”s2″} = 1.9