Instructions: Answer ALL Questions. Provide all JASP input and output files for each question. The .csv file is not required. Screenshots of input files will not be accepted. Question 1 A gynecologist conducted a study to examine the effect of a baby's gestational time in utero on their birth weight. The birth mothers were characterized as smokers ("0") and non-smokers ("1"). Thirty-two subjects were tested and their results are provided below:

Weight (grams)	Gestational (weeks)	Smoker
2940	38	1
3130	38	0
2420	36	1
2450	34	0
2760	39	1
2440	35	1
3226	40	0
3301	42	1
2729	37	0
3410	40	0
2715	36	1
3095	39	0
3130	39	1
3244	39	0
2520	35	0
2928	39	1
3523	41	0
3446	42	1
2920	38	0
2957	39	1
3530	42	0
2580	38	1
3040	37	0
3500	42	1
3200	41	1
3322	39	0
3459	40	0
3346	42	1
2619	35	0
3175	41	1
2740	38	1
2841	36	0

1. What is the most appropriate test to conduct to determine the babies' birth weight while

controlling for a gestational time in utero? Explain?

2. Conduct this test and provide the relevant input and output files.

3. State your hypotheses, provide your results, and your conclusion?

4. Has the assumptions of normality and homogeneity of variance been met? (Quote

relevant statistics in your response and provide the necessary hypotheses).

Question 2

Research is carried out to determine the impact of four types of feed for goats (Hay, Grass,

Browsing and Concentrates). The researcher is of the belief that the three breeds (Boer, Kiko and

Pygmy) he works with may differ in terms of weight gain. He samples 52 goats from each breed,

randomly assigning 13 to each diet. He measures weight gain on each goat in kilograms over a 3-

month period. The results are given below

	Boer	Kiko	Pygmy
	43	115	95
	87	107	43
	126	99	41
	100	114	63
	98	55	99
	95	23	89
	20	80	45
	80	132	25
	129	111	43
	40	130	56
	116	46	24
	34	118	85
Hay	123	39	21
	116	46	26
	106	83	80
	44	129	90
	136	139	40
	49	74	107
Grass	40	123	48
	49	78	36
	62	136	102
	68	20	26
	56	49	26
	112	49	82
	138	47	77
	37	63	74
	30	130	30
	58	40	75
	131	38	117
	39	49	104
	63	25	119
	76	125	23
	87	131	104
	129	101	39
	84	81	136
	29	63	89
	42	119	31
	135	96	78
Browsing	31	113	48
	77	86	74
	128	134	103
	122	117	97
	139	117	134
	72	55	31
	85	75	58
	122	137	112
	51	140	140
	137	81	23
	57	71	138
	99	108	89
Concentrates	26	90	94

1. Propose null hypotheses to test whether feed or breed has an effect on the weight of goats.

2. Using JASP, conduct the relevant test to analyze the hypothesis provided. The JASP output

of all the statistical analyses performed as well as the file that was produced should be

provided

3. Interpret your P-values. Are there any significant main effects or an interaction effect?

4. Are the relevant assumptions satisfied? State your hypotheses and results

5. Now that you have all the information you need, come up with a conclusion statement and

discuss the relationship between the variables.