Mathematics, 19.02.2020 05:21, destanie1030
A certain brand of automobile tire has a mean life span of 36 comma 000 miles and a standard deviation of 2 comma 450miles.(Assume the life spans of the tires have a bell-shaped distribution.)(a) The life spans of three randomly selected tires are 34,000miles, 38,000 miles, and 31,000 miles. Find the z-score that corresponds to each life span.*For the life span of 34,000 miles, z-score is? (Round to the nearest hundredth as needed.)*For the life span of 38,000 miles, z-score is? (Round to the nearest hundredth as needed.)*For the life span of 31,000 miles, z-score is? (Round to the nearest hundredth as needed.)According to the z-scores, would the life spans of any of these tires be considered unusual? Yes or No(b) The life spans of three randomly selected tires are 33,550miles, 38,450 miles, and 36,000 miles. Using the empirical rule, find the percentile that corresponds to each life span. The life span 33,550 miles corresponds to the ?th percentile. The life span 38,450 miles corresponds to the ?th percentile. The life span 36,000 miles corresponds to the--- ?th percentile.
Answers: 1
Mathematics, 21.06.2019 21:20, madisontrosclair2
Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)
Answers: 3
Mathematics, 21.06.2019 22:00, YoungTadoe437
Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr
Answers: 3
A certain brand of automobile tire has a mean life span of 36 comma 000 miles and a standard deviati...
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