Mathematics, 24.04.2020 17:02 makoa
Let X1, X2, ..., X5 be a random sample of size n = 5 from the normal distribution N(0, θ). (a) Argue that the ratio R = (X2 1 + X2 2 )/(X2 1 + ... + X2 5 ) and its denominator (X2 1 + ... + X2 5 ) are independent. (b) Does 5R/2 have an F-distribution with 2 and 5 degrees of freedom? Explain your answer. (c) Compute E(R)
Answers: 2
Mathematics, 21.06.2019 19:00
1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is:
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Mathematics, 22.06.2019 03:00
Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)
Answers: 3
Mathematics, 22.06.2019 03:00
Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?
Answers: 1
Let X1, X2, ..., X5 be a random sample of size n = 5 from the normal distribution N(0, θ). (a) Argue...
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