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- A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters of mercury (mmHg), for a sample of 10 adults. The following table presents the results. ---Predict the diastolic pressure for a patient whose systolic pressure is 145 millimeters. Round the answer to one decimal place.An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2: Suppose a sample of 261 tankers is drawn. Of these ships, 46 had spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 261 tankers is drawn. Of these ships, 46 had spills. Using the data, construct the 90% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places.The highway department wants to estimate the proportion of vehicles on a Highway at KM 25 between midnight and 5:00 A.M. The head of the department wants to see how many 18-wheel tractor trailers pass on the road. These estimates will be used to determine highway repairs and construction considerations and in highway patrol planning. The department chief asked investigators to calculate estimates of vehicles at different locations on inter-island roads over the past 7 days. From 3,481 vehicles counted there are 927 are 18-wheel drive. However, out of the total 927, there were 51 vehicles that had accidents so that the sample was calculated based on the results of a reduction in the number of accidents. Specify an approximate point for the proportion of vehicles performingtravel on KM 25 during this time period which is an 18-wheeled vehicle!(Assume the confidence level is 99%). What are the benefits of estimating value estimates in this case (analysis of the answers you have obtained)?
- Suppose 6 quarts of a solution that is 45% antifreeze is mixed with 2 quarts of a solution that is 19% antifreeze. Answer the questions below. Do not do any rounding. 1. How many quarts of antifreeze are in the resulting mixture? 2. What percentage of the resulting mixture is antifreeze?Staying Single. From the U.S. Census Bureau document America’s Families and Living Arrangements and an article in Time magazine, we found that, in 1963, 83.0% of American women between the ages of 25 and 54 were married, compared to 64.6% in 2010. a. For 2010, identify the population.b. For 2010, identify the specied attribute.c. Under what circumstances is the proportion 0.646 a population proportion?d. Under what circumstances is the proportion 0.646 a sample proportion?The correct size of a nickel is 21.21 millimeters. Based on that, the data can be summarized into the following table: Too Small Too Large Total Low Income 18 22 40 High Income 21 14 35 Total 39 36 75 Based on this data: (give your answers as fractions, or decimals to at least 3 decimal places)a) The proportion of children from the low income group that drew the nickel too large is:b) The proportion of children from the high income group that drew the nickel too large is:
- 37,43 plzThe correct size of a nickel is 21.21 millimeters. Based on that, the data can be summarized into the following table: Too Small Too Large Total Low Income 18 22 40 High Income 21 14 35 Total 39 36 75 Based on this data: (give your answers as fractions, or decimals to at least 3 decimal places)a) The proportion of children from the low income group that drew the nickel too large is: b) The proportion of children from the high income group that drew the nickel too large is: c) The proportion of all children that drew the nickel too large is: d) If a child is picked at random, what is the probability they are in the low income group, given they drew the nickel too large? Keep your answers handy; you will need them again later.The correct size of a nickel is 21.21 millimeters. Based on that, the data can be summarized into the following table: Too Small Too Large Total Low Income 18 22 40 High Income 21 14 35 Total 39 36 75 Based on this data: (give your answers as fractions, or decimals to at least 3 decimal places)a) The proportion of children from the low income group that drew the nickel too large is:b) The proportion of children from the high income group that drew the nickel too large is:c) The proportion of all children that drew the nickel too large is:d) If a child is picked at random, what is the probability they are in the low income group, given they drew the nickel too large?
- The correct size of a nickel is 21.21 millimeters. Based on that, the data can be summarized into the following table indicating the numbers of children from each income group who drew the nickel too small and too large: Too Small Too Large Total Low Income 10 10 20 High Income 9 6 15 Total 19 16 35 3. Based on this data: (give your answers as fractions, or decimals to at least 3 decimal places)a) The proportion of children from the low income group that drew the nickel too large is: b) The proportion of children from the high income group that drew the nickel too large is:The correct size of a nickel is 21.21 millimeters. Based on that, the data can be summarized into the following table indicating the numbers of children from each income group who drew the nickel too small and too large: Too Small Too Large Total Low Income 10 10 20 High Income 9 6 15 Total 19 16 35 3. Based on this data: (give your answers as fractions, or decimals to at least 3 decimal places)a) The proportion of children from the low income group that drew the nickel too large is: b) The proportion of children from the high income group that drew the nickel too large is: c) The proportion of all children that drew the nickel too large is: d) If a child is picked at random, what is the probability they are in the low income group, given they drew the nickel too large? e) If a child is picked at random, what is the probability they are in the high income group OR drew the nickel too large?If 7 prunes provide 10% of vitamin A needed daily, what percent of the daily percent of vitiman A is present in 25 prunes?