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robat Pro DC dow Help Document X Q 2 / 2 9 2 6. When working properly, a process that produces shampoo bottles should produce bottles weighing 20 ounces. Nine samples of 100 bottles of a production cycle only. The proportion of bottles with more than 20 ounces was recorded: 81.4 89.7 99.7 86.6 90.8 90.1 89.7 90.3 90.9 Assuming the population distribution is normal, test at the 5% level against a two-sided alternative that 90% of the bottles weigh 20 ounces. State the null and alternative hypotheses, compute the appropriate test statistic, compute