Entries by Hannah Wangui

How would I calculate this

Question How would I calculate this: Santa Fe black-on-white is a type of pottery commonly found at archaeological excavations at a certain monument. At one excavation site a sample of 588 potsherds was found, of which 350 were identified as Santa Fe black-on-white. (a) Let p represent the proportion of Santa Fe black-on-white potsherds at […]

 

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probability

Question How would I calculate this :The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records, they have found that the length of a first interview is normally distributed, with mean μ = 36 minutes and standard deviation σ = 6 minutes. (Round […]

 

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histogram

Question How do I get calculate the class, frequency and midpoint to make a histogram for the distribution of this data? Each time I tried to put in the data it does not come out correctly. I need assistance. Is the normality assumption that was made at the beginning valid? Why or why not? Hint: […]

 

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share

Question How would I calculate this: If a person bought 1 share of Google stock within the last year, what is the probability that the stock on that day closed within $50 of the mean for that year? (between 50 below and 50 above the mean). The mean is 85.028 and the SD is 1076.025   […]

 

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