Show complete solution. A random sample of 25 observations taken from a population that is normally distributed produced a sample mean of 558.5 and a standard deviation of 7.5. Find the critical and observed values of t for each of the following tests of hypothesis using a = 0.01. a) Ho:μ = 55 b) Ho:μ = 55 Ha: μ > 55 Ha:μ # 55 WIS

Q: Can this be done by a person ?

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Q: what are parts d and e?

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Q: they are both wrong

A: Apologies for the inconvenience. I have rechecked the works and I am solving again them for you. The…

Q: to 9. の)ie6

A: We will use Euler's expansion

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A: F(s)=(-4s-2) /(s2-2s+26)

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Q: answer b and c are not clear, can you upload them again??

A: λ = 1.5 per week  P(X = x ) = e^-λ (λt)x / x! Where x = no of accidents  in a week As per above…

Q: Need solution for D, E and F please

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A: The mean is given by

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A: X-intercepts are found by substituting y=0 in the given function.

Q: Everything was right except for C

A: As you said I am solving part C

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A: Given information N=3200, population mean μ=186, standard deviations σ=17