Compute for the mean and median of the sample data. E. What is the range of the loaf bread weight? F. Calculate the variance of the sample weight.
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7. I am producing 400-gram loaf breads in one of my production lines and measured the
weights of 28 loaf breads from the same batch as shown in table below. (*see attached image for the table.)
D. Compute for the mean and median of the sample data.
E. What is the range of the loaf bread weight?
F. Calculate the variance of the sample weight.
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- Between 1971 and 1975, as part of the National Health and Nutrition Examination Survey (NHANES), 7,381 persons ages 40–77 years were enrolled in a follow-up study. At the time of enrollment, each study participant was classified as having or not having diabetes. During 1982–1984, enrollees were documented either to have died or were still alive. The results are summarized as follows. 1. Of the men enrolled in the NHANES follow-up study, calculate the ratio of non-diabetic to diabetic men. 2. Calculate the proportion of men in the NHANES follow-up study who were diabetics. 3. Calculate the proportion of deaths among men.A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant. Historical records show that 6% of the employees suffered lost-time accidents last year. Management believes that a special safety program will reduce such accidents to 5% during the current year. In addition, it estimates that 15% of employees who had lost-timeaccidents last year will experience a lost-time accident during the current year. a. What percentage of the employees will experience lost-time accidents in both years?b. What percentage of the employees will suffer at least one lost-time accident over the two-year period?Consider a case where 400 fish are tagged and released during a first outing. During a second outing in the same area, 400 fish are again caught and released, of which half are already tagged. Estimate N, the total number of fish in the entire sampling area.
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- A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of six tubes is taken every three hours and weighed with the following results: WEIGHT OF TOOTHPASTE Time 7 am 6.69 6.68 6.79 6.77 6.74 6.76 10 am 6.71 6.72 6.71 6.76 6.75 6.74 1 pm 6.66 6.68 6.67 6.71 6.76 6.78 4 pm 6.73 6.74 6.72 6.76 6.78 6.75 7 pm 6.75 6.73 6.75 6.77 6.79 6.75 The measurement of quality is based on _______. A. a scale B. an attribute C. a chart D. a variableThe following data has been collected on the interarrival times of patients to an emergency department: 3.772, 1.761, 0.743, 15.988, 0.412, 7.541, 6.900, 3.447, 7.024, 1.061, 5.449, 0.309, 0.766, 4.807, 8.143, 0.093, 9.524, 0.012, 4.634, and 0.195 minutes. Estimate the squared coefficient of variation of the arrival process. Is the arrival process likely to be Poisson? Why or why not? Estimate the arrival rate?A Farm grows normally distributed potatoes and is testing a new crop. After 4 months, 20 plants produce potatoes with the following weights (in kg):7, 1.4, 1.4, 1.3, 0.3, 1.4, 0.6, 1.3, 1.3, 1.1, 0.9, 1.5, 1.1, 1.5, 0.6, 1.4, 1.1, 0.5, 0.6, 0.8 b) What percent of potatoes grown from this crop will be over 2 kg? Mean: 1.1 Standard deviation: 0.3883