Mathematics, 11.12.2019 23:31 Bryson2148
The manufacturer of the x-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. assume the mileage wear follows the normal distribution and the standard deviation of the distribution is 5,000 miles. crosset truck company bought 48 tires and found that the mean mileage for its trucks is 59,500 miles. crosset would like to know if their experience is different from the manufacturer’s claim. is crosset's experience different from that claimed by the manufacturer at the .05 significance level
(a) state the null hypothesis and the alternate hypothesis.
(b) state the decision rule.
(c) compute the value of the test statistic.
(d) what is your decision regarding h0?
(e) what is the p-value? interpret it.
Answers: 2
Mathematics, 21.06.2019 12:30
Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).
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Mathematics, 22.06.2019 00:00
Afarmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. each bag of soil covers 20 square yards. how many bags should the farmer purchase? (4 points) 1 bag 2 bags 3 bags 4 bags
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Mathematics, 22.06.2019 00:00
Alice is paying her bill at a restaurant. but tax on the cost of a male is 5%. she decides to leave a tip 20% of the cost of the meal plus the tax
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The manufacturer of the x-15 steel-belted radial truck tire claims that the mean mileage the tire ca...
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