Question text
A study was conducted
with vegetarians to see if the number of grams of protein each ate
per day was related to diastolic blood pressure. The data is given
below. What is the correlation coefficient of the regression line
that relates protein to diastolic pressurep.
Round to 3 decimals
grm protein | 4 | 6.5 | 5 | 5.5 | 8 | 10 | 9 | 8.2 | 10.5 |
dias pressure | 73 | 79 | 83 | 82 | 84 | 92 | 88 | 86 | 95 |
X | Y | X⋅Y | X⋅X | Y⋅Y |
4 | 73 | 292 | 16 | 5329 |
6.5 | 79 | 513.5 | 42.25 | 6241 |
5 | 83 | 415 | 25 | 6889 |
5.5 | 82 | 451 | 30.25 | 6724 |
8 | 84 | 672 | 64 | 7056 |
10 | 92 | 920 | 100 | 8464 |
9 | 88 | 792 | 81 | 7744 |
8.2 | 86 | 705.2 | 67.24 | 7396 |
10.5 | 95 | 997.5 | 110.25 | 9025 |
Question text A study was conducted with vegetarians to see if the number of grams of...
A study was conducted with vegetarians to see whether the number of grams of protein each ate per day was related to diastolic blood pressure. The data are given here. Grams x Pressure y 4 6.5 5 5.5 8 10 9 8.2 73 79 83 82 84 92 88 86 10.5 95 1. Plot the data points on graph paper. 2. Compute and interpret the coefficient of correlation between the Grams (x) and Pressure (y). 3. Conduct a "4" test...
A study was conducted with vegetarians to see whether the number of grams of protein each ate per day was related to diastolic blood pressure. The data are given here. Is there sufficient evidence to conclude that there is a linear correlation between protein intake (grams, x) and diastolic blood pressure (pressure, y)? Fill in the missing blanks for the table given. Grams (ar) Grams Pressure (2. y Pressure (y Grams? (2) Pressure (y) 292 5329 513.5 42.25 6241 25...
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