As Part of a Study of the Swimming Speed of Sharks

question 15

Multiple Choice

As part of a study of the swimming speed of sharks, a random sample of 18 lemon sharks (Triakis semifasciata) were observed in a laboratory sea tunnel. Body lengths and maximum sustainable swimming speeds ("MSSS," reported in body lengths per second) were measured for each shark. The computer output from a regression with y = MSSS and x = body length is given below. ​
Linear Fit MSSS=1.8928955-0.0104278 * Length
Summary of Fit
RSquare 0.526395
RSquare Adj 0.496794
S 0) 272031
Mean of Response 1.24
N Observations 18
​
Analysis of Variance
Source DF Sum of Squares Mean Square F Ratio
Model 1 1.3159870 1.31599 17.7834
Error 16 1.1840130 0.07400 Prob > F
Total 17 2.5000000 0.0007*
​
Parameter Estimates
Term Estimate Std Error t Ratio Prob > |t|
Intercept 1.8928955 0.167575 11.30 < 0.0001*
Length(cm) -0.010428 0.002473 -4.22 0.0007*
​
According to the above computer output, if body length increases by one unit, by how much will the swimming speed, in body lengths per second, change?
​

• A)1.893
• B)-0.0104
• C)-1.893
• D)1.184
• E)-4.22

Analyze the impact of life events, parental influence, and the work environment on personality traits.

Comprehend how heredity and environmental factors interact to influence personality across the lifespan.

Understand the role of belief in control and self-efficacy in personal development and outlook.

Recognize the significance of various factors, including genetic, environmental, and learned responses, in shaping our personality.

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Definitions:

Weathered

The breakdown of rocks, soils, and minerals through contact with the Earth's atmosphere, water, and biological organisms.

Diamonds

Diamonds are a form of carbon arranged in a crystal structure, known to be the hardest natural material, widely used in jewelry and industrial applications.

Pegmatite Crystals

Exceptionally large crystals that form within pegmatite rock, a very coarse-grained igneous rock, often found in cavities that allow for their unobstructed development.

Hot Waters

Water that has been heated naturally or artificially, often found in geothermal springs or produced by water heating systems.