Mathematics, 15.04.2020 02:48 Fangflora3
The quality control manager at a light bulb factory needs to estimate the average life of a large shipment of light bulbs. The process standard deviation is known to be 100 hours. A random sample of 64 light bulbs indicates a sample average of 350 hours. State the null and alternate hypothesis. At the 0.05 level of significance is there evidence that the average life is different from 385 hours. At the 0.10 level of significance is there evidence that the average life is greater than 385
Answers: 2
Mathematics, 21.06.2019 21:30, fheight01
Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.
Answers: 3
Mathematics, 22.06.2019 00:00, baileypreston311
Use the given information to determine the exact trigonometric value.
Answers: 3
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