Chapter 10.MCRegression with Dummies DataSet4 Q1

(Requires StatTools) Run a regression of Y versus the X's, using dummy variables as necessary. Which of the following is true?

Clickhereto reference the data needed to answer the question.

a. If X1 and X2 both increase by 10 units, Y is expected to increase by about 4.47 units, regardless of the category in X3 (Yes, No, or Maybe).

b. For any given values of X1 and X2, if X3 changes from No to Yes, Y is expected to increase by about 5.72 units.

c. For any given values of X1 and X2, if X3 changes from Maybe to No, Y is expected to decrease by about 3.88 units.

d. All of these choices are true.

Y	X1	X2	X3
173	252	311	Maybe
166	272	301	Yes
168	277	273	Maybe
202	266	474	Yes
160	247	314	Maybe
172	271	322	Yes
168	270	320	No
184	280	351	Maybe
200	295	451	Maybe
163	253	328	Maybe
182	294	395	No
183	297	375	No
164	258	313	No
174	275	318	Yes
197	292	450	Maybe
192	296	355	Yes
156	262	245	No
166	254	338	No
168	261	376	No
161	265	337	No
171	276	365	No
187	282	377	Yes
179	260	281	No
179	255	464	Yes
176	252	416	Yes
167	242	349	No
167	274	305	No
174	278	300	Yes
195	293	399	Maybe
158	251	262	Maybe
177	263	295	Yes
159	267	342	No
163	256	303	Maybe
191	273	432	Yes
158	247	336	No
172	268	372	No
170	259	334	No
184	304	317	Yes
174	262	329	Yes
178	278	370	Maybe
178	259	384	Yes
175	254	389	Maybe
175	279	359	Maybe
165	258	269	Maybe
184	284	423	No
181	289	361	Yes
177	284	368	Maybe
169	255	285	Maybe
188	274	361	Maybe
173	271	326	Yes
166	256	294	Yes
165	250	345	Maybe
160	275	241	Yes
170	249	406	Maybe
173	263	333	Maybe
175	286	404	No
169	260	279	No
163	279	310	No
179	288	296	Maybe
180	269	324	No
162	264	275	No
182	272	399	Yes
187	287	373	Maybe
188	283	437	Yes
181	280	409	Maybe
178	270	431	No
171	257	343	Yes
190	265	366	Yes
185	276	380	Maybe
175	281	308	Maybe
180	273	411	No
209	308	414	Yes
162	245	346	Maybe
193	303	379	Yes
178	261	385	No
183	267	420	Yes
196	299	352	Yes
176	267	383	No
156	257	257	No
169	268	255	Maybe
161	235	283	No
194	285	439	Yes
182	285	426	Maybe
186	291	363	Yes
164	240	392	Maybe
189	286	357	Maybe
169	264	401	No
167	270	350	Maybe
164	269	292	No
166	245	356	Maybe
159	243	341	No
171	277	324	No
163	265	331	No
172	283	391	Maybe
176	290	396	Yes
170	249	418	Yes
160	248	289	No
174	281	386	Yes
186	300	445	Yes
190	290	407	Yes