# Supercavitation is a propulsion technology for undersea vehicles that can greatly increase their speed.

4 answers

###### Question:

Supercavitation is a propulsion technology for undersea vehicles that can greatly increase their speed. It occurs above approximately 50 meters per second when pressure drops sufficiently to allow the water to dissociate into water vapor, forming a gas bubble behind the vehicle. When the gas bubble completely encloses the vehicle, supercavitation is said to occur. Eight tests were conducted on a scale model of an undersea vehicle in a towing basin with the average observed speed

x¯¯¯=102.2meters

per second. Assume that speed is normally distributed with known standard deviation σ = 4 meters per second. a. Test the hypothesis

H0:μ=100

versus

H1:μ<100

using α = 0.05. b. What is the P-value for the test in part (a)? c. Compute the power of the test if the true mean speed is as low as 95 meters per second. d. What sample size would be required to detect a true mean speed as low as 95 meters per second if you wanted the power of the test to be at least 0.85? e. Explain how the question in part (a) could be answered by constructing a one-sided confidence bound on the mean speed.

x¯¯¯=102.2meters

per second. Assume that speed is normally distributed with known standard deviation σ = 4 meters per second. a. Test the hypothesis

H0:μ=100

versus

H1:μ<100

using α = 0.05. b. What is the P-value for the test in part (a)? c. Compute the power of the test if the true mean speed is as low as 95 meters per second. d. What sample size would be required to detect a true mean speed as low as 95 meters per second if you wanted the power of the test to be at least 0.85? e. Explain how the question in part (a) could be answered by constructing a one-sided confidence bound on the mean speed.

## Answers

Letter b hope it

playboycarti! *

she tryna be crate.

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

[tex]A. name the streets that are parallel to golden gate. b. name the streets that intersect 6th street.[/tex]1; 35 is the ratio

step-by-step explanation:

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