# Question: Consider the following data collected on a single helical

Consider the following data collected on a single helical coil extension spring with an initial extension Fi and a spring rate k suspected of being related by the equation F = Fi + kx where x is the deflection beyond initial. The data are

(a) Estimate the mean and standard deviation of the initial tension Fi.

(b) Estimate the mean and standard deviation of the spring rate k.

(a) Estimate the mean and standard deviation of the initial tension Fi.

(b) Estimate the mean and standard deviation of the spring rate k.

## Answer to relevant Questions

In the expression for uniaxial strain the elongation is specified as (0.0015, 0.000 092) in and the length as l ~ (2.0000, 0.0081) in. What are the mean, the standard deviation, and the coefficient of variation of the ...An automatic screw machine produces a run of parts with a uniform distribution d =U[0.748, 0.751] in because it was not reset when the diameters reached 0.750 in. The square brackets contain range numbers. (a) Estimate the ...For Prob. 20–3, plot the histogram with f / (Nw) as ordinate and superpose a normal distribution probability density function on the histographic plot.Find RAB in the circuit shown.A 5160H steel was tested in fatigue and the distribution of cycles to failure at constant stress level was found to be n = W [36.9,133.6, 2.66] in 103 cycles. Plot the PDF of n and the PDF of the lognormal distribution ...Post your question