1.A college professor claims his student grades are distributed as follows: A: 17%; B: 29%; C: 38%; D: 11%; F:...

1.A college professor claims his student grades are distributed as follows: A: 17%; B: 29%; C: 38%; D: 11%; F: 5% A random sample of 340 grades resulted in the following counts: A: 50; B: 101; C: 125; D: 55; F: 9 Test whether the grades follow the given distribution at the level of significance (α) of 0.025

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orchestra answered 1 year ago

Given the following table of grades: Grades A B C D F Totals Males 17 8...

Given the following table of grades: Grades A B C D F Totals Males 17 8 14 11 3 53 Females 12 11 13 6 5 47 Totals 29 19 27 17 8 100 a. What is the probability that a randomly selected student got an A or B? b. What is the probability that if a student was female that they got a passing grade? c. What is the probability of a female student given that they got a...

DATA: Grades A- 10 B- 2 C- 1 D- 0 F- 2 Q23. a)...

DATA: Grades A- 10 B- 2 C- 1 D- 0 F- 2 Q23. a) If a committee with 2 student members is to be formed, what is the probability of forming a committee with one A grade and one F grade student? Q24. If a committee with 3 student members is to be formed, what is the probability of forming a committee with two A grade and one B grade student? Q25.If the records show that, the probability...

In a certain large college course, past records show that grades of A, B, C, D,...

In a certain large college course, past records show that grades of A, B, C, D, and F (which are the only grades assigned) are equally likely. If one student is chosen at random, what is: (a) Pr(C) (b) Pr(A or B) (c) Pr(a grade better than D) (d) Pr(A, B, C, D, or F) (e) Pr(B and D) (f) Pr(E) If two students who do not know one another take the course described above, what are the following probabilities:...

A B C 13 7 9 29 19 54 25 54 5 17 15 11 21...

A B C 13 7 9 29 19 54 25 54 5 17 15 11 21 22 20 a) Construct ANOVA table and test the null hypothesis: μA = μB = μC b) Assume that you have statistically enough evidence to reject the null hypothesis; suggest an approach to find out whether all three means are different than each other or only one of them is different than others (while the other two means are equal) and if the second...

Grades Female Male A 21.25% 29.51% B 36.25% 31.15% C 23.75% 14.75% D 9.38% 13.11% F...

Grades Female Male A 21.25% 29.51% B 36.25% 31.15% C 23.75% 14.75% D 9.38% 13.11% F 9.38% 11.48% Do the letter grades from males differ from the letter grade of the females?

1. Determine whether the function f from { a, b, c, d } to {a,...

1. Determine whether the function f from { a, b, c, d } to {a, b, c, d, e} is injective (one-to-one), surjective (onto) and/or bijective (one-to- one correspondence) : f(a) = a, f(b) = c, f(c) = b, f(d) = e a. Is this function injective? . surjective? . bijective? . If your answer is no for any of the above, explain: b. Is there an inverse for this function? . c. Is the composition f...

(a) (f ∘ g)(3) (b) g(f(2)) (c) g(f(5)) (d) (f ∘ g)(−3) (e) (g ∘ f)(−1) (f) f(g(−1))

Find the cubic equation. F(x)=ax^3+bx^2+cx+d F(-1)=3 F(1)=1 F(2)=6 F(3)=7 What is the value of a,b,c,d

1. ¬B∨(G↔J), H→(B&C) ∴(H&J)→G 2. A∨B, C↔¬(B∨D) ∴C→A 3. (A&B) ↔ (F→G), (A&F) & B∴(G→R)→R 4....

1. ¬B∨(G↔J), H→(B&C) ∴(H&J)→G 2. A∨B, C↔¬(B∨D) ∴C→A 3. (A&B) ↔ (F→G), (A&F) & B∴(G→R)→R 4. T→¬B, T→¬D ∴ T→¬(B∨D) 5. ¬(M∨¬S), S→(R→M) ∴A → (¬R∨T) 6. (F&G) → I, (I∨J) → K ∴F→(G→K) 7. ¬U, O→G, ¬(O∨G) →U ∴G Prove that the arguments are valid by constructing a dedication using the rules MP, MT, DN, Conj, Simp, CS, Disj, DS, DM, CP, HS, BE, and DL. Use CP if needed.

1.Which would be least useful for MRI? A. 1- H B. 17-O C. 12-C D. 23-Na...

1.Which would be least useful for MRI? A. 1- H B. 17-O C. 12-C D. 23-Na E. 31-P 2. At 1.5 T, the excess number (%) of proton spins in the low energy state over the high energy state is most likely: a) > 10 b) 10 c) 1 d) 0.01 e) < 0.01

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