Mathematics, 10.05.2021 20:50, jocejay83681
Ilya's bank issued an advertisement saying that 90%90\%90%90, percent of its customers are satisfied with the bank’s services. Since he himself wasn't very satisfied, he suspected the ad is false. He surveyed a random sample of 80808080 of the bank’s customers, and found that only 85%85\%85%85, percent were satisfied.
Let's test the hypothesis that the actual percentage of satisfied customers is 90%90\%90%90, percent versus the alternative that the actual percentage is lower than that.
The table below sums up the results of 1000100010001000 simulations, each simulating a sample of 80808080 customers, assuming there are 90%90\%90%90, percent satisfied customers.
According to the simulations, what is the probability of getting a sample with 85%85\%85%85, percent satisfied customers or less
Answers: 3
Mathematics, 21.06.2019 21:30, Officaljazz18
Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle
Answers: 1
Mathematics, 22.06.2019 03:00, kolbehoneyman
Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a standard deviation of $0.10. using chebyshev's theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.41 and $4.01? round your answer to one decimal place.
Answers: 2
Ilya's bank issued an advertisement saying that 90%90\%90%90, percent of its customers are satisfied...
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