The data shown below represent the age (in weeks) at which babies first crawl, based on a survey of 12 mothers. Complete parts (a) through (c) below. 52 30 44 47 37 56 26 37 47 Click here to view the table of critical correlation coefficient values for normal probability plots. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Click here to view the table of critical t-values. 350 35 47

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Need to find correlation between expected z-scores and observed data, and critical value
The data shown below represent the age (in weeks) at which babies first crawl, based on a survey of 12 mothers. Complete parts (a) through (c) below.
30
47 37
37 47 35 47
Click here to view the table of critical correlation coefficient values for normal probability plots. Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table. Click here to view the table of critical t-values.
52
44
350
56 26
(a) Draw a normal probability plot to determine if it is reasonable to conclude the data come from a population that is normally distributed. Choose the correct answer below.
OA.
OB.
O B.
O C.
0-
0-
0-
0-
-1-
-1-
-1-
-2-
20 30 40 50 60
Age (in weeks)
20 30 40 50 60
Age (in weeks)
-24
20 30 40 50 60
20 30 40 50 60
Age (in weeks)
Age (in weeks)
Since the correlation between the expected z-scores and the observed data,
V the critical value
it
V reasonable to conclude that the data come from a
population that is normally distributed.
(Round to three decimal places as needed.)
Expected zscore
Transcribed Image Text:The data shown below represent the age (in weeks) at which babies first crawl, based on a survey of 12 mothers. Complete parts (a) through (c) below. 30 47 37 37 47 35 47 Click here to view the table of critical correlation coefficient values for normal probability plots. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Click here to view the table of critical t-values. 52 44 350 56 26 (a) Draw a normal probability plot to determine if it is reasonable to conclude the data come from a population that is normally distributed. Choose the correct answer below. OA. OB. O B. O C. 0- 0- 0- 0- -1- -1- -1- -2- 20 30 40 50 60 Age (in weeks) 20 30 40 50 60 Age (in weeks) -24 20 30 40 50 60 20 30 40 50 60 Age (in weeks) Age (in weeks) Since the correlation between the expected z-scores and the observed data, V the critical value it V reasonable to conclude that the data come from a population that is normally distributed. (Round to three decimal places as needed.) Expected zscore
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