Mathematics, 01.09.2019 20:30 val926
Aday care program has an average daily expense of $75.00. the standard deviation is $15.00. the owner takes a sample of 64 bills. what is the probability the mean of his sample will be between $70.00 and $80.00?
step 1. calculate a z-score for $70.00:
Answers: 2
Mathematics, 21.06.2019 23:00
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Mathematics, 22.06.2019 05:00
The investigating team suspected that there were differences in the cost of repairing cars in workshop i and workshop ii. the investigating team suspected that the costs raised by workshop i were greater than workshop ii. for that they tested the repair of 15 cars in each workshop to see the cost of repairs.the decision of the right hypothesis to prove the suspicion above is a. h0 : μ1- μ2 = 0; ha : μ1- μ2 ≠ 0 b. h0 : μ1- μ2 ≥ 0; ha : μ1- μ2 < 0 c. h0 : μd ≥ 0; ha : μd < 0 with μd = μ2- μ1 d. h0 : μd = 0; ha : μd ≠ 0 with μd = μ2- μ1 e. h0 : μ1- μ2 = 0; ha : μ1- μ2 ≥ 0
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Mathematics, 22.06.2019 05:30
Point j (-4,-6) and point k (4,4) are located on a coordinate grid. which measurement is closest to the distance between point j and point k in units
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Aday care program has an average daily expense of $75.00. the standard deviation is $15.00. the owne...
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