Question

your help is appreciated :)

A researcher at UCLA is hoping to determine if there a difference between state college statistics students and private college statistics students in what technology they use on a class project? of the randomly selected state college students 65 used StatDisk, 82 used a calculator with built in statistics functions, and 27 used Excel. Of the randomly selected private college students 49 used StatDisk, 85 used a calculator with built in statistics functions, and 38 used Excel. Conduct the appropriate hypothesis test using an a. 0.10 level of significance. a. What is the correct statistical test to use? Paired t-test Goodness-of-Fit Homogeneity Independence b. What are the null and alternative hypotheses? HO: The distribution of the technology that state college statistics students use for their project is not the same as the distribution of the technology that private college statistics students use for their project. Type of student and type of technology used for statistics project are independent. The distribution of the technology that state college statistics students use for their project is the same as the distribution of the technology that private college statistics students use for their project. Type of student and type of technology used for statistics project are dependent. H: Type of student and type of technology used for statistics project are dependent. The distribution of the technology that state college statistics students use for their project is not the same as the distribution of the technology that private college statistics students use for their project. The distribution of the technology that state college statistics students use for their project is the same as the distribution of the technology that private college statistics students use for their project. Type of student and type of technology used for statistics project are independent, c. The test statistic for this data (Please show your answer to three decimal places.)

Answer 1

a. Option C

b. Option C

Option B

c. 4.150

d. 0.1256

e. >

f. fail to reject

g. Option A

		StatDisk	Calculator	Excel	Total
State	Observed	65	82	27	174
	Expected	57.33	83.98	32.69	174.00
	O - E	7.67	-1.98	-5.69	0.00
	(O - E)² / E	1.03	0.05	0.99	2.06
Private	Observed	49	85	38	172
	Expected	56.67	83.02	32.31	172.00
	O - E	-7.67	1.98	5.69	0.00
	(O - E)² / E	1.04	0.05	1.00	2.09
Total	Observed	114	167	65	346
	Expected	114.00	167.00	65.00	346.00
	O - E	0.00	0.00	0.00	0.00
	(O - E)² / E	2.06	0.09	1.99	4.15
		4.150	chi-square
		2	df
		.1256	p-value