Math: Normal Division and Self confidence Interval

 Math: Usual Distribution and Confidence Span Essay

Statistics Math 1342 Last Exam Assessment

Name___________________________________

MULTIPLE CHOICE. Choose the one option that best completes the statement or perhaps answers problem. Provide an suitable response. 1) A card is drawn from a standard deck of 52 playing cards. Get the probability that the card is an ace or possibly a heart. seventeen 7 3 4 A) B) C) D) 52 52 13 13 Solution: D 2) The events A and B are contradictory. If P(A) = 0. 7 and P(B) = 0. 2, what is P(A or B)? A) 0. 5 B) 0. on the lookout for C) 0. 14 D) 0 Response: B 3) A endroit is tossed. Find the probability the result is heads. A) 1 B) 0. your five C) zero. 1 Response: B 4) Suppose you are using = 0. 01 to test what he claims that Вµ = 950 using a P-value. You are given the

1)

2)

D) 0. being unfaithful

3)

4)

sample stats n sama dengan 35, by = 920, and h = 82. Find the P-value. A) 0. 0308 B) 0. 3169 C) 0. 0077

D) 0. 0154

Answer: A 5) Grade factors are designated as follows: A = four, B = 3, C = 2, D = 1, and F sama dengan O. Levels are weighted according to credit hours. When a student receives an A in a four-unit school, a Deb in a two-unit class, a B within a three-unit course and a C in a three-unit category, what is the student's gpa? A) 1 . 75 B) 3. 00 C) 2 . 50 D) 2 . 75 Answer: Deb 6) The top 14 rates of speed, in a long way per hour, to get Pro-Stock move racing in the last two decades are listed below. Find the median speed. 181. 1 201. 2 202. 2 193. 2 one hundred ninety. 1 201. 2 201. 4 194. 5 191. 3 199. 2 201. 4 196. 0 192. 2 196. 2

5)

6)

A) 201. a couple of Answer: B

B) 196. 1

C) 195. 8

D) 196. 7

7) The top 18 speeds, in miles hourly, for Pro-Stock drag auto racing over the past 20 years are listed below. Find the mean rate. 181. you 201. two 202. two 193. two 190. one particular 201. two 201. 4 194. your five 191. 3 199. two 201. some 196. zero 192. two 196. two

7)

A) 210. on the lookout for Answer: B

B) 195. 8

C) 201. 2

D) 196. 1

you

8) Determine the correlation coefficient, 3rd there’s r, for the info below. times y -10 -8 4 -13 A) -0. 549 -1 you -4 -10 -6 -7 -9 -6 B) -0. 132 -5 -2 -3 -12 -2 -1 -9 0 C) -0. 581

8)

D) -0. 104

Answer: Deb 9) Given H0: Вµ 18 and P = 0. 085. Do you reject or are not able to reject H0 at the zero. 05 amount of significance? A) not adequate information to determine B) neglect to reject H0 C) deny H0 9)

Answer: W 10) Your data below are a final exam a mass of 10 arbitrarily selected figures students and the number of several hours they analyzed for test. What is the best predicted worth for con given back button = two? Assume that the variables by and con have a substantial correlation. Hours, x Scores, y several 65 a few 80 two 60 eight 88 two 66 four 78 5 85 five 90 six 90 3 71

10)

A) 67 Answer: M

B) sixty four

C) 66

D) 66

11) The mean associated with bus drivers in Chicago, il is 53. 4 years. If a speculation test is conducted, how in the event you interpret a choice that rejects the null hypothesis? A) There is not satisfactory evidence to aid the claim Вµ = 53. 4. B) There is enough evidence to reject what he claims Вµ = 53. some. C) There is sufficient data to support the claim Вµ sama dengan 53. 4. D) There isn't sufficient data to reject the claim Вµ = 53. 4. Solution: B 12) Find the equation in the regression range for the given data. x con -5 -3 4 one particular 11 six -6 -1

^ ^

11)

12)

-1 -2 3 four

0 2 3 -4 1 -4 -5 eight

A) sumado a = -1. 885x + 0. 758 C) y = -0. 758x - 1 . 885 Answer: A

B) con = 1 ) 885x -- 0. 758 D) con = zero. 758x & 1 . 885

^

^

13) The lengths of pregnancies are usually distributed which has a mean of 268 days and a normal deviation of 15 days. In the event that 64 females are randomly selected, get the likelihood that they have a mean pregnancy among 266 days and 268 days. A) 0. 5517 B) zero. 3577 C) 0. 2881 D) zero. 7881 Solution: B

13)

2

BRIEF ANSWER. Write down thier word or phrase that best finishes each statement or answers the question. 14) Find the z-score that corresponds to the given region under the normal normal contour. 14)

Answer: z = 0. 40 MULTIPLE CHOICE. Choose the one particular alternative that best wraps up the declaration or answers the question. 15) If one particular card is drawn from a normal deck of 52 playing cards, what is the probability of drawing a red credit card? 1 1 1 you A) B)...

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