null hypothesis

ch12

Student:

1. For a multinomial illustration after a while k categories, the goodness-of-fit ordeal statistic is antecedent to thrive a chi-square dispensation after a while k degrees of immunity.

True False

2. If the inoperative conjecture is uncommon by the goodness-of-fit ordeal, the choice conjecture specifies which of the population uniformitys dispute from their hypothesized treasures.

True False

3. For a chi-square goodness-of-fit ordeal, the expected nature frequencies are congenial using the scantling nature uniformitys.

True False

4. For a chi-square ordeal of a choice consultation, the expected frequencies for each cell are congenial bombastic the inoperative conjecture is penny.

True False

5. For a chi-square ordeal of a choice consultation, the degrees of immunity are congenial as (r - 1)(c - 1) where r and c are the enumerate of rows and shafts in the choice consultation.

True False

6. For a chi-square ordeal of a choice consultation, each notice may be counted in multiple cells of the choice consultation.

True False

7. The chi-square ordeal statistic measures the disputeence among the observed frequencies and the expected frequencies bombastic the inoperative conjecture is penny.

True False

8. A goodness-of-fit ordeal analyzes for two vital mutables seeing a chi-square ordeal of a choice consultation is for a solitary vital mutable.

True False

9. When applying the goodness-of-fit ordeal for regularity, the vital facts must be converted into a vital format.

True False

10. For the Jarque-Bera ordeal for regularity, the ordeal statistic is antecedent to feel a chi-square dispensation after a while 2 degrees of immunity.

True False

11. For a multinomial illustration, which of the thriveing is not penny?

A. The enumerate of categories is at last two,

B. The trials are dependent

C. The sum of the nature probabilities is 1,

D. The nature probabilities are the selfselfsimilar for each trial

12. For the goodness-of-fit ordeal, the expected nature frequencies rest are the:

A. scantling uniformitys

B. hypothesized uniformitys

C. mediocre of the hypothesized and scantling uniformitys

D. uniformitys clear under the choice conjecture

lOMoARcPSD|3013804

13. Which of the thriveing inoperative hypotheses is used to ordeal if five population uniformitys are the selfsame?

A.  

B.  

C.  

D.  

14. For the goodness-of-fit ordeal, the sum of the expected frequencies must similar:

A.

B. n

C. k

D. k - 1

15. For the goodness-of-fit ordeal, the chi-square ordeal statistic will:

A. regularly similar zero

B. regularly be negative

C. be at last zero

D. regularly be similar to n

16. The chi-square ordeal of a choice consultation is a ordeal of anarchy for:

A. A solitary vital mutable

B. Two vital mutables

C. Two vital mutables

D. Three or past vital mutables

17. For the chi-square ordeal of a choice consultation, the expected cell frequencies are rest as:

A. The row sum multifarious by the shaft sum disjoined by the scantling extent

B. The observed cell frequency

C. (r - 1) (c - 1)

D. (r)(c)

18. The chi-square ordeal of a choice consultation is efficient when the expected cell frequencies are:

A. Similar to 0

B. Past than 0 but close than 5

C. At last 5

D. Negative

19. For the chi-square ordeal of a choice consultation, the expected cell frequencies are rest

as which is the selfselfsimilar as:

A. The observed cell frequencies

B. The cell presumption multifarious by the scantling extent

C. The row sum

D. The shaft sum

20. What are the degrees of immunity for the goodness-of-fit ordeal for regularity?

A. 2

B. k - 3

C. k - 2

D. k - 1

lOMoARcPSD|3013804

21. For the chi-square ordeal for regularity, the expected frequencies for each meantime must be:

A. Exactly 2

B. k - 3

C. At last 5

D. k - 1

22. For the goodness-of-fit ordeal for regularity, the inoperative and choice hypotheses are:

A.  

B.  

C.  

D.  

23. For the goodness-of-fit ordeal for regularity to be applied, what is the incompleteness enumerate of vital meantimes the vital facts can be converted to?

A. 2

B. 4

C. 5

D. 10

24. The anticipation of the Jarque-Bera ordeal statistic involves:

A. Only the scantling extent

B. The scantling extent, model intermission, and mediocre

C. The scantling extent, skewness coefficient, and the kurtosis coefficient

D. The scantling mediocre, skewness coefficient, and the kurtosis coefficient

25. For the Jarque-Bera ordeal for regularity, the inoperative and choice hypotheses are:

A.  

B.  

C.  

D.  

26. Packaged candies feel three disputeent types of speciousnesss, guess you shortness to enumerate if the population uniformity of each speciousness is the selfsame. The most alienate ordeal is the:

A. Goodness-of-fit ordeal for a multinomial illustration

B. Chi-square ordeal for anarchy

C. Goodness-of-fit ordeal for regularity

D. Jarque-Bera ordeal for regularity

27. Guess you shortness to enumerate if gender and important are fractions. Which ordeal should you use?

A. Goodness-of-fit ordeal for a multinomial illustration

B. Chi-square ordeal for anarchy

C. Goodness-of-fit ordeal for regularity

D. Jarque-Bera ordeal for regularity

lOMoARcPSD|3013804

28. Guess you shortness to enumerate if common funds quarterly avail feel a regular dispensation when your adapted facts is partitioned into some non-overlapping meantimes after a while ardent frequencies. The most alienate ordeal is the:

A. Goodness-of-fit ordeal for a multinomial illustration

B. Chi-square ordeal for anarchy

C. Goodness-of-fit ordeal for regularity

D. Jarque-Bera ordeal for regularity

29. Guess you shortness to enumerate if common funds quarterly avail feel a regular dispensation using vital compendium statistics. The most alienate ordeal is the:

A. Goodness-of-fit ordeal for a multinomial illustration

B. Chi-square ordeal for anarchy

C. Goodness-of-fit ordeal for regularity

D. Jarque-Bera ordeal for regularity

30. If a ordeal statistic has a treasure of X and is antecedent to be χ2 exclusive after a while df degrees of immunity, then the p-treasure for a right-tailed ordeal rest by Excel is:

A. CHISQ.DIST.RT(X, df)

B. CHISQ.DIST.RT(df, X)

C. 1-CHISQ.DIST.RT(X, df)

D. 1-CHISQ.DIST.RT(df, X)

31. EXHIBIT 12-1 A card commerce implement deals spades (1), hearts (2), clubs (3), and diamonds (4) at haphazard as if from an unbounded arrange. In a haphazardness control, 1,600 cards were dealt and counted. The results are shown under.

Refer to Exhibit 12.1. To ordeal if the poker commerce implement deals cards at haphazard, the inoperative and choice

hypotheses are:

A.

B.

C.

D.

lOMoARcPSD|3013804

32. EXHIBIT 12-1 A card commerce implement deals spades (1), hearts (2), clubs (3), and diamonds (4) at haphazard as if from an unbounded arrange. In a haphazardness control, 1,600 cards were dealt and counted. The results are shown under.

Refer to Exhibit 12.1. For the goodness-of-fit ordeal, the degrees of immunity are:

A. 2

B. 3

C. 4

D. 5

33. EXHIBIT 12-1 A card commerce implement deals spades (1), hearts (2), clubs (3), and diamonds (4) at haphazard as if from an unbounded arrange. In a haphazardness control, 1,600 cards were dealt and counted. The results are shown under.

Refer to Exhibit 12.1. For the goodness-of-fit ordeal, the treasure of the ordeal statistic is:

A. 2.25

B. 3.125

C. 6.45

D. 7.815

34. EXHIBIT 12-1 A card commerce implement deals spades (1), hearts (2), clubs (3), and diamonds (4) at haphazard as if from an unbounded arrange. In a haphazardness control, 1,600 cards were dealt and counted. The results are shown under.

Refer to Exhibit 12.1. The p-treasure is:

A. Close than 0.01

B. Among 0.01 and 0.05

C. Among 0.05 and 0.10

D. Greater than 0.10

lOMoARcPSD|3013804

35. EXHIBIT 12-1 A card commerce implement deals spades (1), hearts (2), clubs (3), and diamonds (4) at haphazard as if from an unbounded arrange. In a haphazardness control, 1,600 cards were dealt and counted. The results are shown under.

Refer to Exhibit 12.1. Using the p-treasure access and α = 0.05, the sentence and blank are:

A. Do not throw-by the inoperative conjecture, all of the population uniformitys are the selfsame

B. Throw-by the inoperative conjecture, end that not all uniformitys are similar to 0.20

C. Throw-by the inoperative conjecture, end that not all uniformitys are similar to 0.25

D. Do not throw-by the inoperative conjecture, cannot end that not all of the uniformitys are similar to 0.25

36. EXHIBIT 12-1 A card commerce implement deals spades (1), hearts (2), clubs (3), and diamonds (4) at haphazard as if from an unbounded arrange. In a haphazardness control, 1,600 cards were dealt and counted. The results are shown under.

Refer to Exhibit 12.1. At the 5% judgment raze, the nice treasure is:

A. 6.251

B. 7.815

C. 9.348

D. 11.345

37. EXHIBIT 12-1 A card commerce implement deals spades (1), hearts (2), clubs (3), and diamonds (4) at haphazard as if from an unbounded arrange. In a haphazardness control, 1,600 cards were dealt and counted. The results are shown under.

Refer to Exhibit 12.1. Using the nice treasure access, the sentence and blank are:

A. Do not throw-by the inoperative conjecture, cannot end that not all of the uniformitys are similar to 0.25

B. Do not throw-by the inoperative conjecture, all of the population uniformitys are the selfsame

C. Throw-by the inoperative conjecture, end that not all uniformitys are similar to 0.25

D. Throw-by the inoperative conjecture, end that not all uniformitys are similar to 0.20

lOMoARcPSD|3013804

38. EXHIBIT 12.2 A university has six schools and takes a poll to probe novice food for a schooling acception. The university shortnesss to guarantee each school is represented fairly. The under consultation shows the observed enumerate novices that share in the poll from each school and the developed uniformity of novices in each school.

Refer to Exhibit 12.2. For the goodness-of-fit ordeal, the antecedent degrees of immunity are:

A. 2

B. 3

C. 4

D. 5

39. EXHIBIT 12.2 A university has six schools and takes a poll to probe novice food for a schooling acception. The university shortnesss to guarantee each school is represented fairly. The under consultation shows the observed enumerate novices that share in the poll from each school and the developed uniformity of novices in each school.

Refer to Exhibit 12.2. For the goodness-of-fit ordeal, the choice conjecture states that A.

B.

C.

D.

lOMoARcPSD|3013804

40. EXHIBIT 12.2 A university has six schools and takes a poll to probe novice food for a schooling acception. The university shortnesss to guarantee each school is represented fairly. The under consultation shows the observed enumerate novices that share in the poll from each school and the developed uniformity of novices in each school.

Refer to Exhibit 12.2. What is the treasure of the goodness-of-fit ordeal statistic?

A. 3.08

B. 15.09

C. 15.64

D. 16.75

41. EXHIBIT 12.2 A university has six schools and takes a poll to probe novice food for a schooling acception. The university shortnesss to guarantee each school is represented fairly. The under consultation shows the observed enumerate novices that share in the poll from each school and the developed uniformity of novices in each school.

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