Students investigated the packaging of potato chips. They purchased 6 randomly selected bags of chips marked with a net

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Students investigated the packaging of potato chips. They purchased 6 randomly selected bags of chips marked with a net weight of 28.3 grams at different randomly selected stores. They carefully weighed the contents of each bag, recording the weights below (in grams). a) Do these data satisfy the assumptions for inference? Explain. b) Find the mean and standard deviation of the weights. c) Test the hypothesis that the net weight is as claimed The P value is (Round to three decimal places as needed.)

An airline's public relations department says that the airline rarely loses passengers' luggage. It further claims that on those occasions when luggage is lost. 87% is recovered and delivered to its owner within 24 hours. A consumer group who surveyed a large number of air travelers found that only 159 of 196 people who lost luggage on that airline were reunited with the missing items by the next day. Does this cast doubt on the airline's claim? Explain Find the P-value Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA P value (Round to three decimal places as needed.) B. The assumptions and conditions are not met, so the test cannot proceed

State the null and alternative hypotheses. Select the correct choice below. O A. Ho: P+0.87 HA: p=0.811 B. Ho: p= 0.87 HA: p<0.87

Determine the z-test statistic. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. z= -2.45 (Round to two decimal places as needed.) OB. The assumptions and conditions are not met, so the test cannot proceed.