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the University of Denver Infant Study Center to participate in one of a number of experiments between 1988 and 1991. Parents reported the birth month and the age at which their child was first able to creep or crat a đistance of 4 feet within 1 minute. The resulting data were grouped by month of birth: January, May, and September: Crawling age Birth month Mean St. dev. January 29.84 7.08 32 May 28.58 8.07 27 September 33.83 6.93 38 Crawling age is given in weeks. Assume the data represent three independent simple random samples, one from each of the three populations consisting of babies born in that particular month, and that the populatio of crawling ages have Normal đistributions. A partial ANOVA table is given below. Source Sum of squares DF Mean square F Groups 505.26 Error 53.45 Total What are the degrees of freedom for the groups term? O a. 94 Ob.3 OC 96 Qd2

the University of Denver Infant Study Center to participate in one of a number of experiments between 1988 and 1991. Parents reported the birth month and the age at which their child was first able to creep or crat a đistance of 4 feet within 1 minute. The resulting data were grouped by month of birth: January, May, and September: Crawling age Birth month Mean St. dev. January 29.84 7.08 32 May 28.58 8.07 27 September 33.83 6.93 38 Crawling age is given in weeks. Assume the data represent three independent simple random samples, one from each of the three populations consisting of babies born in that particular month, and that the populatio of crawling ages have Normal đistributions. A partial ANOVA table is given below. Source Sum of squares DF Mean square F Groups 505.26 Error 53.45 Total What are the degrees of freedom for the groups term? O a. 94 Ob.3 OC 96 Qd2

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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At what age do babies learn to crawl? Does it take longer to learn in the winter when babies are often bundled in clothes that restrict their movement? Data were collected from parents who brought their babies into the University of Denver Infant Study Center to participate in one of a number of experiments between 1988 and 1991. Parents reported the birth month and the age at which their child was first able to creep or crawl a distance of 4 feet within 1 minute. The resulting data were grouped by month of birth: January, May, and September: Crawling age Birth month Mean St. dev. January 29.84 7.08 32 May 28.58 8.07 27 September 33.83 6.93 38 Crawling age is given in weeks. Assume the data represent three independent simple random samples, one from each of the three populations consisting of babies born in that particular month, and that the populations of crawling ages have Normal đistributions. A partial ANOVA table is given below. Source Sum of squares DF Mean square F Groups 505.26 Error 53.45 Total What are the degrees of freedom for the groups term? O a. 94 Ob.3 OC 96 Od. 2
Transcribed Image Text:At what age do babies learn to crawl? Does it take longer to learn in the winter when babies are often bundled in clothes that restrict their movement? Data were collected from parents who brought their babies into the University of Denver Infant Study Center to participate in one of a number of experiments between 1988 and 1991. Parents reported the birth month and the age at which their child was first able to creep or crawl a distance of 4 feet within 1 minute. The resulting data were grouped by month of birth: January, May, and September: Crawling age Birth month Mean St. dev. January 29.84 7.08 32 May 28.58 8.07 27 September 33.83 6.93 38 Crawling age is given in weeks. Assume the data represent three independent simple random samples, one from each of the three populations consisting of babies born in that particular month, and that the populations of crawling ages have Normal đistributions. A partial ANOVA table is given below. Source Sum of squares DF Mean square F Groups 505.26 Error 53.45 Total What are the degrees of freedom for the groups term? O a. 94 Ob.3 OC 96 Od. 2
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