45 samples are randomly selected from a normal distribution. The sample mean observed is 78 and sample standard deviation is 11. Construct a 98% confidence interval? [Use critical value = 2.414]

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A: Data given…

Q: ↑ Use the following cell phone airport data speeds (Mbps) from a particular network. Find Q₁. 0.1…

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A: see the attachment please......................

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Q: Values (x) Frequency (f) 20 2 29 4 30 4 39 3 44 2 030 32.07 55.35

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A:

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Q: f(x)= 2(1+x) 117 Find (a) P(X<9); (b) P(2≤X<9).

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Q: For any two events A and B, we have (i) P(ìB) = P(B) – P(A^B) (ii) P(AB) = P(A) - P(A^B)

A: Answer..

Q: You didn't solve d), e), and f).

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