The compression ratio for an engine is defined by the expanded volume: compressed volume. the larger the compression ratio is, the more powerful the engine. what is the compression ratio if the expanded volume is 400 cc and the compressed volume is 260 cc? round your answer to the hundredths place if necessary. make sure your answer has a 1 in the denominator or the right hand value.

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)