Letting μ represent the mean composite satisfaction rating for the XIZ Box, set up the mif hypothesis P o and the altemative hypothesis Fr needed if we wish to attempt to provide evidence supporting the claim that n exceeds 42 . (b) The random sample of 62 satisfaction ratings yields a sample mean of x=42990x=42.990. If a equals 2.69, use critical values to test H 0
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versus H 2
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at each of α=10,05,01, and 001. (Romd yom answer zos to 3 decimal places and other z-scores to 2 decimal places ) (c) Using the information in part (b), calculate the p-value and use it to test Eo versus Ba at each of a=−10,05,01, and 001 . (Ronnd your answers to 4 decimalplaces)