Since alpha=.05, any p value which has a value less than alpha gives information against the null hypothesis, and the null hypothesis is rejected. Option c and d are both true and the we alert the engineers that the value falls outside the specification limit.
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The Lawnpoke Golf Association (LGA) has established rules that manufacturers of golf equipment must meet for their products to be acceptable for LGA events. BatOutaHell Balls uses a proprietary process to produce balls with a mean distances of 295 yards. BatOutaHell is concerned that if the mean distance falls below 295 yards, the word will get out and sales will sag. Further, if the mean distance exceeds 295 yards, their balls may be rejected by LGA. Measurements of the distances...