Mathematics, 19.11.2020 01:00 jagger68
Carpetland carpet installers earn an average profit of $300 for each carpet installed. Joan Chin, the firm's vice president, proposes a new procedure for installations, which she hopes will be more efficient. Joan hopes that the results of a trial period will enable her to conclude with a level of significance of 0.05 that the new procedure increases the average profit for installing a carpet. 5. Which of the following describes the null hypothesis that Joan will use?
Answers: 2
Mathematics, 21.06.2019 21:00, kitttimothy55
Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out
Answers: 2
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