[Accounting] Final TEST of Clctc K55 PDF

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final test of accounting at ftu. Used in English by clctc k55!!!!!1...

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FINAL TEST- NLTK- CLCTC K55 1. a. b. c. d.

Type I error is committed if we make: A correct decision when the null hypothesis is false A correct decision when the null hypothesis is true An incorrect decision when the null hypothesis is false An incorrect decision when the null hypothesis is true

2. a. b. c. d.

The chi-square distribution: Can have negative value Is symmetrical Will become normal distribution when the degree of freedom is small None of the above

3. A professor refutes the claim that the average student spends 3 hours studying for the midterm exam. She thinks they spend more time than that. Which hypothesis to test the claim? a. H0 ≠ 3, H1>3 b. H0=3, H1>3 c. H0=3, H1>=3 d. H0=3, H135 σ 2 10.1 b. χ 2 > 30.1

c.

16. The test statistic is: a. χ 2 =12.34 b. χ 2 = 23.56

c.

χ

2

>23.9 d.

χ 2 = 33.03 d.

χ

2

>6.3 χ 2 =45.34

Estimate the proportion p of defective items coming out of a machine. A random inspection of 310 items show 84 defective ones. 17. The variance of sampling distribution can be approximated as: a. 0.197 b. 0.0006 c. 0.0454 d. 0.7574 (p(1-p)/n 18. The 90% lower limit for p is: a. 0.221 b. 0.230 c. 0.241

d. 0.235

19. The 95% upper limit for p is: a. 0.345 b. 0.320 c. 0.303

d. 0.312

Suppose the temperture T is normally distributed with mean 68 and standard deviation 6 20. The probablity that T is between 70 and 85 is: a. 0.99 b. 0.633 c. 0.49 d. 0.368 21. The value of t such that P(T>t)=0.25 is: a. 72.02 b. 67.34 c. 75.35 d. 74.35 22. To estimate the mean of normal population with standard deviation =6, a bound on the error of estimation equal to 1.2 and confidence level 99% requires sample size of at least: a. 166 b. 169 c. 130 d. 143 23. Suppose Z has standard normal distribution. The value of x such that P( Z...