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The manager of an online shop wants to determine whether the mean length of calling time of its customers is significantly more than 3 minutes. A random sample of 100 customers was taken. The average length
answered
Feb 14, 2021
Mathematics
high-school
2
votes
196k
views
Woodpeckers find insects to eat by pecking holes in trees with their beaks. One day, a woodpecker finds a particular tree that offers an abundant supply of the bird's favorite bugs. The woodpecker is likely
answered
Feb 9, 2021
Chemistry
college
4
votes
117k
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