Mathematics, 06.03.2020 19:30 redhot12352
The shear strength of each of ten test spot welds is determined, yielding the following data (psi). 409 378 358 362 389 404 415 375 367 396 (a) Assuming that shear strength is normally distributed, estimate the true average shear strength and standard deviation of shear strength using the method of maximum likelihood. (Round your answers to two decimal places.) average psi standard deviation psi (b) Again assuming a normal distribution, estimate the strength value below which 95% of all welds will have their strengths. [Hint: What is the 95th percentile in terms of μ and σ? Now use the invariance principle.] (Round your answer to two decimal places.) psi (c) Suppose we decide to examine another test spot weld. Let X = shear strength of the weld. Use the given data to obtain the mle of P(X ≤ 400). [Hint: P(X ≤ 400) = Φ((400 − μ)/σ).] (Round your answer to four decimal places.)
Answers: 1
Mathematics, 21.06.2019 13:00
Carter drank 15.75 gallons of water in 4 weeks. he drank the same amount of water each day.a. estimate how many gallons he drank in one day.b. estimate how many gallons he drank in one week.c. about how many days altogether will it take him to drink 20 gallons?
Answers: 1
Mathematics, 21.06.2019 13:30
Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.
Answers: 1
Mathematics, 21.06.2019 20:50
Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c
Answers: 3
Mathematics, 21.06.2019 21:00
Which of the following is the best first step in solving the equation below? 4+2㏒³x=17
Answers: 1
The shear strength of each of ten test spot welds is determined, yielding the following data (psi)....
Spanish, 29.07.2020 21:01
Computers and Technology, 29.07.2020 21:01
Mathematics, 29.07.2020 21:01
Mathematics, 29.07.2020 21:01
History, 29.07.2020 21:01
Mathematics, 29.07.2020 21:01