An article in the Journal of Sound and Vibration described a study on the relationship between noise exposure and hypertension. The noise exposure is measured by the Sound Pressure Level (SPL) whereas hypertension is measured by the Blood Pressure Rise (BPR). A representative data set reported is as follows: SPL 60 63 65 70 70 70 80 90 80 80 85 89 90 BPR 1 2 5 4 3 5 4 6 2. 1. 1.
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- How sensitive to changes in water temperature are coral reefs? To find out, scientists examined data on sea surface temperatures and coral growth per year at locations in the Gulf of Mexico and the Caribbean Sea. The table shows the data for the Gulf of Mexico. Sea surface temperature 26.726.7 26.626.6 26.626.6 26.526.5 26.326.3 26.126.1 Growth 0.850.85 0.850.85 0.790.79 0.860.86 0.890.89 0.920.92 Click to download the data in your preferred format. CSV Excel JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI CrunchIt! © Macmillan Learning (a) Make a scatterplot. Which is the explanatory variable? The plot shows a negative linear pattern. Explanatory Variable: How sensitive to changes in water temperature are coral reefs? To find out, scientists examined data on sea surface temperatures and coral growth per year at locations in the Gulf of Mexico and the Caribbean Sea. The table shows the data…A 1982 paper by Hans Rosendal and Samuel Shaw established a correlation between the maximum sustained surface wind speeds to the minimum sea level pressure in central north pacific cyclones. Use the following data below to test this result. Minimum Sea Level Pressure (in millibars) (x) Surface Wind Speed (in knots) (y) 968 89 1022 42 1012 72 931 130 984 73 992 97 942 121 974 77 1008 93 939 126 956 115 1014 86 Calculate the correlation coefficient. Round to three decimals Find the equation of the regression line. Round each value to two decimals Preview New data has just arrived indicating that the minimum sea level pressure for a storm is 955 millibars. Predict the maximum sustained wind speed in knots. Round your answer to the nearest integerThe authors of a paper presented a correlation analysis to investigate the relationship between maximal lactate level x and muscular endurance y. The accompanying data was read from a plot in the paper. X 390 740 760 y 3.90 r 3.90 5.00 5.30 4.10 3.60 6.20 OH₂: P = 0 Ha: P 0 1,465 1,470 1,495 2,190 t = P-value = 6.98 7.45 4.85 7.70 4.55 6.70 8.80 OH₂: P = 0 H₂: P = 0 Compute the value of the sample correlation coefficient, r. (Round your answer to four decimal places.) Calculate the test statistic and determine the P-value. (Round your test statistic to one decimal place and your P-value to three decimal places.) State the conclusion in the problem context. O Fail to reject Ho. A positive correlation exists between maximum lactate level and muscular endurance. Reject Ho. A positive correlation exists between maximum lactate level and muscular endurance. O Fail to reject Ho. A positive correlation does not exist between maximum lactate level and muscular endurance. O Reject Ho. A…
- A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement. Find the coefficient of variation for each of the two samples; then compare the variation. Systolic 116 130 157 96 158 120 118 137 126 119 Diastolic 81 77 75 53 88 86 58 65 70 84 The coefficient of variation for the systolic measurements is %. (Type an integer or decimal rounded to one decimal place as needed.)Can you help me with d?The toco toucan, the largest member of the toucan family, possesses the largest beak relative to body size of all birds. This exaggerated feature has received various interpretations, such as being a refined adaptation for feeding. However, the large surface area may also be an important mechanism for radiating heat (and hence cooling the bird) as outdoor temperature increases. Presented is the data for beak heat loss, as a percent of total body heat loss from all sources, at various temperatures in degrees Celsius. [Note: The numerical values in this problem have been modified for testing purposes.] Temperature (°C) 1515 1616 1717 1818 1919 2020 2121 2222 2323 2424 2525 2626 2727 2828 2929 3030 Percent heat loss from beak 3232 3636 3636 3333 3535 4747 5757 5151 4242 5353 4646 5252 5959 5959 6363 6262 (a) What is the equation of the least‑squares regression line for predicting beak heat loss, as a percent of total body heat loss from all sources, from temperature? (Use…
- Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water. Bottom 0.430 0.266 0.567 0.531 0.707 0.716 0.651 0.589 0.469 0.723 Surface 0.415 0.238 0.390 0.410 0.605 0.609 0.632 0.523 0.411 0.612 Does the data suggest that the true average concentration in the bottom water is different than that of surface water? Note: You can assume that the conditions for inference are met.A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement. Find the coefficient of variation for each of the two samples; then compare the variation. Systolic 116 130 157 96 158 120 118 137 126 119 Diastolic 81 77 75 53 88 86 58 65 70 84 The coefficient of variation for the systolic measurements is 14.9 %. Type an integer or decimal rounded to one decimal place as needed.) The coefficient of variation for the diastolic measurements is%. Type an integer or decimal rounded to one decimal place as needed.)A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement Find the coefficient of variation for each of the two samples; then compare the variation. Systolic 119 127 158 94 156 120 117 137 128 122 e Diastolic 82 74 74 50 89 89 56 62 71 82 The coefficient of variation for the systolic measurements is %. (Type an integer or decimal rounded to one decimal place as needed.) Next Get more help - Next 8:36 PM 50°F Clear 3/27/2022
- The trend of thinner beauty pageant winners has generated charges that the contest encourages unhealthy diet habits among young women. Listed below are body mass indexes (BMI) for beauty pageant winners from two different time periods. Find the coefficient of variation for each of the two sets of data, then compare the variation. BMI (from the 1920s and 1930s): 20.5 21.9 22.1 22.3 20.3 18.7 18.8 19.4 18.3 19.2 BMI (from recent winners): 19.4 20.3 19.6 20.3 17.7 17.9 19.2 18.7 17.7 16.8 The coefficient of variation for the BMI's of beauty pageant winners from the 1920s and 1930s is %. (Round to one decimal place as needed.) The coefficient of variation for the BMI's of recent beauty pageant winners is %. (Round to one decimal place as needed.) Is there a difference in variation between the two data sets? O A. The BMI's of beauty pageant winners from the 1920s and 1930s have considerably less variation than the BMI's of recent winners. O B. The BMI's of recent beauty pageant winners have…Listed below are pulse rates (beats per minute) from samples of adult males and females. Does there appear to be a difference? Find the coefficient of variation for each of the two samples, then compare the variation. Male 89 70 60 69 68 51 66 55 81 70 60 64 98 54 65 D Female 66 83 80 71 72 86 87 88 90 89 92 72 86 78 79 The coefficient of variation for the male pulse rates is % (Type an integer or decimal rounded to one decimal place as needed.) The coefficient of variation for the female pulse rates is % (Type an integer or decimal rounded to one decimal place as needed.). Compare the variation. The coefficients of variation for each data set are EX Therefore, the male pulse rates vary the female pulse rates.Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel). Hotel occupancy data for February in two consecutive years are as follows. Occupied Rooms Total Rooms Ho: P₁ P₂ #0 Ha: P1 - P2 = 0 Current Year Previous Year Ho: P1 - P2 = 0 Ha: P₁ P₂ #0 Ho: P₁ Ha: P₁ (a) Formulate the hypothesis test that can be used to determine if there has been an increase in the proportion of rooms occupied over the one-year period. (Let p₁ rooms occupied for current year and = P2 population proportion of rooms occupied for previous year.) - Ho: P₁ Ha: P₁ P₂ 0 1,750 1,440 1,800 = population proportion of