Please explain the answers step by step and make it clear to understand. Thanks!
ID: 3066333 • Letter: P
Question
Please explain the answers step by step and make it clear to understand. Thanks! 9,/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 I minute. The resulting data were grouped January, May, and September: by month of birth: Crawling age Birth month Mean January May St. dev. 29.84 7.08 28.58 8.07 33.83 32 27 38 em 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 distributions. A partial ANOVA table is given below. Source Sum of squares DF Mean square F Groups Error Total 505.26 53.45 What can we say about the P-value for this F test? A) P-valueExplanation / Answer
9:
Total number of participants: 32+27+38 = 97
Number of groups: 3
Following is the completed ANOVA:
The p-value is: 0.0110
Correct option is B.
Source Sum of squares DF Mean Square F Groups 505.26 3-1=2 505.26/2=252.63 252.63/53.45=4.73 Error 94*53.45=5024.3 97-3=94 53.45 Total 5529.56 96