About Alpha Geek

Levels Tought:
University

Expertise:

Accounting,Algebra See all

Accounting,Algebra,Architecture and Design,Art & Design,Biology,Business & Finance,Calculus,Chemistry,Communications,Computer Science,Environmental science,Essay writing,Programming,Social Science,Statistics Hide all

Teaching Since:	Apr 2017
Last Sign in:	439 Weeks Ago, 1 Day Ago
Questions Answered:	9562
Tutorials Posted:	9559

Education

bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016

Experience

Professor
Harvard Square Academy (HS2)
Mar-2012 - Present

Category > Business & Finance Posted 07 May 2017 My Price 10.00

Deep space survey of quasars

4.11 Deep space survey of quasars. A quasar is a distant celestial object (at least 4 billion light- years away) that provides a powerful source of radio energy. The Astronomical Journal (July 1995) reported on a study of 90 quasars detected by a deep space survey. The survey enabled astronomers to measure several different quan- titative characteristics of each quasar, including

redshift range, line ﬂux (erg/cm2 · s), line luminos- ity (erg/s), AB1450 magnitude, absolute magnitude, and rest frame equivalent width. The data for a

sample of 25 large (redshift) quasars is listed in the table on p. 187.

(a) Hypothesize a ﬁrst-order model for equivalent width, y, as a function of the ﬁrst four variables in the table.

QUASAR			LINE		ABSOLUTE	REST FRAME
	REDSHIFT	LINE FLUX	LUMINOSITY	AB1450	MAGNITUDE	EQUIVALENT WIDTH
QUASAR	(x1)	(x2)	(x3)	(x4)	(x5)	y
1	2.81	−13.48	45.29	19.50	−26.27	117
2	3.07	−13.73	45.13	19.65	−26.26	82
3	3.45	−13.87	45.11	18.93	−27.17	33
4	3.19	−13.27	45.63	18.59	−27.39	92
5	3.07	−13.56	45.30	19.59	−26.32	114
6	4.15	−13.95	45.20	19.42	−26.97	50
7	3.26	−13.83	45.08	19.18	−26.83	43
8	2.81	−13.50	45.27	20.41	−25.36	259
9	3.83	−13.66	45.41	18.93	−27.34	58
10	3.32	−13.71	45.23	20.00	−26.04	126
11	2.81	−13.50	45.27	18.45	−27.32	42
12	4.40	−13.96	45.25	20.55	−25.94	146
13	3.45	−13.91	45.07	20.45	−25.65	124
14	3.70	−13.85	45.19	19.70	−26.51	75
15	3.07	−13.67	45.19	19.54	−26.37	85
16	4.34	−13.93	45.27	20.17	−26.29	109
17	3.00	−13.75	45.08	19.30	−26.58	55
18	3.88	−14.17	44.92	20.68	−25.61	91
19	3.07	−13.92	44.94	20.51	−25.41	116
20	4.08	−14.28	44.86	20.70	−25.67	75
21	3.62	−13.82	45.20	19.45	−26.73	63
22	3.07	−14.08	44.78	19.90	−26.02	46
23	2.94	−13.82	44.99	19.49	−26.35	55
24	3.20	−14.15	44.75	20.89	−25.09	99
25	3.24	−13.74	45.17	19.17	−26.83	53

Source: Schmidt, M., Schneider, D. P., and Gunn, J. E. ‘‘Spectroscopic CCD surveys for quasars at large redshift,’’ Astronomical Journal, Vol. 110, No. 1, July 1995, p. 70 (Table 1). Reproduced by permission of the American Astronomical Society.

(b) The ﬁrst-order model is ﬁt to the data using SPSS. The printout is provided on p. 188. Give the least squares prediction equation.

(d) Test to determine whether redshift (x1) is a useful linear predictor of equivalent width (y), using α = .05.

(degrees), and depth (feet) of each well was mea- sured. The data are saved in the ASWELLS ﬁle. (The ﬁrst and last ﬁve observations are listed below.)

(e)

Locate R2 and R2

on the SPSS printout.

WELLID LATITUDE LONGITUDE DEPTH ARSENIC

Interpret these values. Which statistic is the preferred measure of model ﬁt? Explain.

(f) Locate the global F -value for testing the over- all model on the SPSS printout. Use the statistic to test the null hypothesis H0: β1 =

β2 = ··· = β4 = 0.

Mar 26 2016 12:01 PM

Answers

Alpha Geek

(8)

Status NEW Posted 07 May 2017 10:05 AM My Price 10.00

-----------

Attachments

file 1494153143-1498060_1_636296443960409219_1498060.docx preview (309 words )

a-----------) ----------- b-----------) ----------- ----------- c)----------- I-----------nte-----------rpr-----------eta-----------tio-----------n o-----------f �-----------�1:----------- A-----------s t-----------he -----------val-----------ue -----------for----------- th-----------e v-----------ari-----------abl-----------e r-----------eds-----------hif-----------t r-----------ang-----------e(x-----------) i-----------ncr-----------eas-----------es -----------by -----------1 u-----------nit-----------, t-----------he -----------val-----------ue -----------for----------- th-----------e -----------Dep-----------end-----------ent----------- va-----------ria-----------ble----------- y -----------or -----------fla-----------me -----------equ-----------iva-----------len-----------t w-----------idt-----------h i-----------ncr-----------eas-----------es -----------by -----------app-----------rox-----------ima-----------tel-----------y 1-----------09 -----------uni-----------ts.----------- I-----------nte-----------rpr-----------eta-----------tio-----------n o-----------f b-----------eta-----------2: ----------- As----------- th-----------e v-----------alu-----------e f-----------ox -----------the----------- va-----------ria-----------ble----------- li-----------nef-----------lux-----------(x,-----------) i-----------ncr-----------eas-----------es -----------by -----------1 u-----------nit-----------, t-----------he -----------val-----------ue -----------for----------- th-----------e d-----------epe-----------nde-----------nt ----------- Va-----------ria-----------ble----------- y -----------or -----------fra-----------me -----------equ-----------iva-----------len-----------t w-----------idt-----------h i-----------ncr-----------eas-----------es -----------by -----------app-----------rox-----------ima-----------tel-----------y 5-----------58 -----------uni-----------ts ----------- In-----------ter-----------pre-----------tat-----------ion----------- of----------- be-----------ta3-----------:

Not Rated(0)

Buy Answer

Hire Dedicated Virtual Team / Business Solution for SMEs.