AP STATISTICS FREE-RESPONSE QUESTIONS Summary statistics for Rania's data are shown in the table below. Variable Number of soft drinks Gender Female Male N 60 40 Jesar 0:62 Mean 2.90 7.45 Standard Deviation 1.80 2.22 (c) Based on the summary statistics, calculate the estimated standard deviation of the sampling distribution of Rania's point estimator Xoverall = (0.6)X female + (0.4)X male. (6 6 2 140 ) ² + (-.-) 2) ²2 01949+.0197136 21.1979 in to mentay ing d for 13.

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Hello, Could someone walk me through this problem, although I had wrote the answer to it, but I still do not fully understand how to get the solution. Thank You.

Summary statistics for Rania's data are shown in the table below.
Variable
AP® STATISTICS FREE-RESPONSE QUESTIONS
Number of
soft drinks
Gender
Female
Male
N
60
40
Mean
2.90
7.45
Standard
Deviation
1.80
2.22
(c) Based on the summary statistics, calculate the estimated standard deviation of the sampling distribution of
Rania's point estimator Xoverall = (0.6)X female+ (0.4)X male.
Je 2120)² + (4202)²
631.80
2.22
JGO
01949+,0197136 2.1979
in te
id
mestay
lag
a fur
im.
Transcribed Image Text:Summary statistics for Rania's data are shown in the table below. Variable AP® STATISTICS FREE-RESPONSE QUESTIONS Number of soft drinks Gender Female Male N 60 40 Mean 2.90 7.45 Standard Deviation 1.80 2.22 (c) Based on the summary statistics, calculate the estimated standard deviation of the sampling distribution of Rania's point estimator Xoverall = (0.6)X female+ (0.4)X male. Je 2120)² + (4202)² 631.80 2.22 JGO 01949+,0197136 2.1979 in te id mestay lag a fur im.
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