Mathematics, 06.02.2020 02:48 taliyahjhonson1
Estimate the minimum and maximum ages for typical textbooks currently used in college courses, then use the range rule of thumb to estimate the standard deviation. next, find the size of the sample required to estimate the mean age (in years) of textbooks currently used in college courses. use a 90% confidence level and assume that the sample mean will be in error by no more than 0.25 year.
Answers: 1
Mathematics, 21.06.2019 13:40
In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.
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Mathematics, 21.06.2019 17:10
The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?
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Mathematics, 21.06.2019 19:30
Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?
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Mathematics, 21.06.2019 20:00
The total number of dental clinics total for the last 12 months was recorded
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Estimate the minimum and maximum ages for typical textbooks currently used in college courses, then...
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