Mathematics, 11.10.2019 01:00, tejasheree
Consumer reports uses a 100-point customer satisfaction score to rate the nations major chain stores. assume that from the past experience with the satisfaction rating score, a population standard deviation of 12 is expected. in 2012, costco with its 432 warehouses in 40 states was the only chain store to earn an outstanding rating for overall quality. a sample of 15 costco customer satisfaction scores follow:
95 90 83 64 95
98 80 83 82 93
86 80 94 75 62
(a) what is the sample mean customer satisfaction score for costco?
(b) what is the sample variance?
(c) what is the sample standard deviation?
Answers: 1
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Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld
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The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?
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Consumer reports uses a 100-point customer satisfaction score to rate the nations major chain stores...
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