Mathematics, 11.12.2019 02:31 monkeys450
Dr. christina cuttleman, a nutritionist, claims that the average number of calories in a serving of popcorn is 75 with a standard deviation of 7. a sample of 50 servings of popcorn yields an average of 78 calories.
a. should z test or t test be used?
b. check dr. cuttleman's claim at a = 0.05.
Answers: 3
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Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?
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Dr. christina cuttleman, a nutritionist, claims that the average number of calories in a serving of...
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