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Weights of Pacific Yellowfin tuna follow a normal distribution with mean weight 68 lb and standard deviation 12 lb. A) Find the weight that corresponds to z = -1.35? B) What weight represents 95th p
the Yield Strength Sy = 40,000 psi, The Lenght l = 60 in and compressive load P = 30,000. Determine the safety factor N for the following boundary conditions Pinned - Pinned.
The manufacturer wants to check that the mean length of their bolts is 160 mm, and so takes a sample of 50 bolts and uses a one tail test with ? = .01 (i.e. H0: µ ? 160). What is the probabili
A manufacturer of strapping tape claims that the tape has a mean breaking strength of 500 psi. Experience has shown that breaking strengths are approximately normally distributed, with a standard d
A spring deflected by its rest position by 3 inches. If the modulus of the spring is 150 lbm/in, what is the work done in stretching the spring?
Describe the circumstances under which the shape of the sampling distribution of p-hat is approx.
Find the diamter of a pipe where (p1-p2) is 55 psi and the height rise along the pipe is 60 ft or (h2-h1) = 60 ft (the exit is higher than the entrance ).
Data analysis. It should include all the tables, charts, and detailed analysis. Please note that for each of the datasets that you present, you should also clearly analyze the pattern of the data an
A piston cylinder compressor is available for evaluation. How much mass is compressed during each compression stroke for these devices.
If the steam is to leave the condenser as saturated liquid at 20 kPa, determine the mass flow rate of the cooling water required in kg/min.
A turbine blade 6.3 cm long with cross sectional area 4.6x10-4m^2 and perimeter 0.12 m is made of stainless steel. Determine the temperature of the blade tip using analytical solution. Tip could be as
The device is now cooled until the temperature reaches 0degree C. Determine the change of volume of the device during cooling.
How much mass is compressed during each compression stroke for these devices. Find the final Temperature and volume of air before discharge.
The maximum permitted strain amplitude that would allow a component to survive 1000 cycles under fully reversed plastic loading is approximately(C=0.21,c=0.5)?
Water vapor initially at 3.0 MPa and 300oC (state 1) is contained within a piston-cylinder assembly. Determine the specific volumes at states 1, 2, and 3 in cm3/g and the quality at state 2.
It is known that the standard deviation of the population is $36,000. Using a 1% level of significance, test to determine if there has been a significant decrease in the average price homes. Use the
Suppose that X represents a single observation from the distn given by f(x; theta) = theta*x^(theta - 1) for 0 < x < 1. Find the most powerful test with significance level alpha = 5% to test Ho:
The average monthly rent for a one-bedroom home in San Francisco is $1,429. A random sample of 20 one-bedroom homes about 15 miles outside of San Francisco had a mean rent of $1,550. The population
What total number of replications is required to increase the precision of the estimate and reduce the confidence interval half-length to 1.5 for the same 95% confidence level?
The average movie admission price for a recent year was $7.18. The population variance was $3.81. A random sample of 15 theater admission prices had a mean of $8.02 with a standard deviation of 2.08
What is the maximum peak acceleration of the ejection pulse applied to the pilot? assuming that the seated pilot of 160lb can be modeled with a spinal spring stiffness of k = 450 lb/in.
They are now thermally connected by a reversible heat engine cooling air tank and boiling the water to saturated vapo. Find the required amount of air and the work out of the heat engine.
A sample of 30 cookies is taken to test the claim that each cookie contains an average of at least 9 chocolate chips. The average number of chocolate chips per cookie in the sample was 7.8 with a sa
Use the p value approach. Make sure to show all parts of the test, including hypotheses, test statistic, decision rule, decision and conclusion.
How many degrees of freedom will you use? Draw the null distribution and include the critical values and the test statistic.