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January 27, 2015

January 27, 2015

Posted by **Me** on Saturday, August 17, 2013 at 8:39am.

Does the model look good?

Problem 1

The null hypothesis is:

The model is good.

The model isn't good.

Too many of the plants are in Category C.

The proportion of plants in Category A is expected to be 9/16; the difference in the sample is due to chance.

Problem 2

The alternative hypothesis is:

The model is good.

The model isn't good.

Too many of the plants are in Category C.

The proportion of plants in Category A is expected to be 9/16; the difference in the sample is due to chance.

Problem 3

Under the null, the expected number of plants in Category D is ______.

Problem 4

The chi-square statistic is closest to

1

1.5

2

2.5

3

3.5

4

4.5

Problem 5

Degrees of freedom = _______.

Problem 6

Based on this test, does the model look good?

Yes No

- Statistics -
**PsyDAG**, Saturday, August 17, 2013 at 12:39pmWe do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

- Statistics -
**Anonymous**, Saturday, August 17, 2013 at 12:40pmProblem 1

The null hypothesis is:

The proportion of plants in Category A is expected to be 9/16; the difference in the sample is due to chance.

Problem 2

The alternative hypothesis is:

The model is good.

Problem 4

The chi-square statistic is closest to

2.5

Problem 5

Degrees of freedom = 3.

Problem 6

Based on this test, does the model look good?

Yes

- Statistics -
**Anonymous**, Sunday, August 18, 2013 at 3:56pmProblem 3?

- Statistics -
**WalterDe**, Sunday, August 18, 2013 at 4:56pmExercise set 5 answers:

4c51a450.linkbucks

Note: add dotcom after the word linkbucks

you're welcome

- Statistics -
**Help**, Tuesday, August 20, 2013 at 12:08amThanks, Walter DE

- Statistics -
**Anonymous**, Wednesday, August 21, 2013 at 2:30am@walter de u link doesn't work

- Statistics -
**stat**, Wednesday, August 21, 2013 at 9:52amwhat's the answer?

Under the null, the expected number of plants in Category D is ______.

- Statistics -
**Cod**, Wednesday, August 21, 2013 at 1:51pmprob 1 - the model is good

- Statistics -
**Anonymous**, Thursday, August 22, 2013 at 11:38amwhat's the answer?

Under the null, the expected number of plants in Category D is ______.

- Statistics -
**Anonymous**, Thursday, August 22, 2013 at 5:27pmProblem 5

Degrees of freedom = _______.

- Statistics -
**Anonymous**, Friday, August 23, 2013 at 7:07amProblem 3, under null is 25 number of plants in Category D.

- Statistics -
**stat**, Friday, August 23, 2013 at 11:19amthanks

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