A group of scientists were interested in studying the
concentrations of radioactive cesium, a waste product of nuclear
reactors, in Bq/kg of Pacific tuna off the cost of California, in
2011. This study was prompted by the Fukushima nuclear meltdown,
also in 2011.
(a) Examine the recorded concentrations from a random sample of
tuna. Is it reasonable to use any of the inferential procedures
learned in class on this data? Briefly explain.
(b) Determine whether the radioactive concentration in 2011 is significantly higher that the historical average of 2 Bq/kg.
Data:
10.3 |
10.1 |
7.2 |
9.6 |
8.7 |
9.5 |
6.9 |
8.8 |
7.4 |
7.5 |
4.5 |
8.9 |
5.2 |
6.2 |
8.1 |
7.5 |
6.3 |
11.5 |
9.2 |
5.6 |
8.6 |
7.7 |
8.9 |
11.3 |
10.9 Show all your work please |
A group of scientists were interested in studying the concentrations of radioactive cesium, a was...
A group of scientists were interested in studying the concentrations of radioactive cesium, a waste product of nuclear reactors, in Bq/kg of Pacific tuna off the cost of California, in 2011. This study was prompted by the Fukushima nuclear meltdown, also in 2011. (a) (2 pts) Examine the recorded concentrations from a random sample of tuna in Q3data.xlsx. Is it reasonable to use any of the inferential procedures learned in class on this data? Briefly explain. (b) (7 pts) Determine...
Compute the correlation coefficient, r, for all five variables (columns). Interpret your findings whether you have determined any relationship between variables. X1 X2 X3 X4 X5 The data (X1, X2, X3, X4, X5) are by city. 8 78 284 9.1 109 X1 = death rate per 1000 residents 9.3 68 433 8.7 144 X2 = doctor availability per 100,000 residents 7.5 70 739 7.2 113 X3 = hospital availability per 100,000 residents 8.9 96 1792 8.9 97 X4 = annual...
Compute Regression Analysis for following relationship: The relationship between death rate X1 (USD) vs. population density X5. Population as a Predictor, X, then death rate as a Response variable, Y. Get Regression Output, and Scatter plot between these variables and compute Coefficient of Determination, R2, and Interpret your findings. X1 X2 X3 X4 X5 The data (X1, X2, X3, X4, X5) are by city. 8 78 284 9.1 109 X1 = death rate per 1000 residents 9.3 68 433 8.7 144...