Mathematics, 30.07.2020 04:01 alexiscorey7051
The 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 400 750 770 800 850 1025 1200
y 3.80 4.00 4.90 5.20 4.00 3.50 6.30
Sxy = 36.9839, Syy= 2628,930.357, Sxy= 7377.704
A scatter plot shows a linear pattern.
a. Test to see whether there is a positive correlation between maximal lactate level and muscular endurance in the population from which this data was selected.
b. If a regression analysis were to be carried out to predict endurance from lactate level, what proportion of observed variation in endurance could be attributed to the approximate linear relationship? Answer the analogous question if regression is used to predict lactate level from endurance—and answer both questions without doing any regression calculations.
Answers: 3
Mathematics, 21.06.2019 17:30
Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x
Answers: 3
Mathematics, 21.06.2019 20:00
Rectangle bcde is similar to rectangle vwxy. what is the length of side vy? a) 1 7 b) 2 7 c) 3 7 d) 4 7
Answers: 3
The authors of a paper presented a correlation analysis to investigate the relationship between maxi...
Mathematics, 05.05.2020 09:05
English, 05.05.2020 09:05
English, 05.05.2020 09:05
History, 05.05.2020 09:05
Computers and Technology, 05.05.2020 09:05
Mathematics, 05.05.2020 09:05
Engineering, 05.05.2020 09:05
Mathematics, 05.05.2020 09:05