Math 220, Fall 2024, Garren
Using SPSS:
(A) Change the random number seed to the last five digits of your student identification number. Include in your output a computer screenshot of the SPSS chart confirming that you changed the random number seed. Highlight your random number seed in GREEN.
(B) Generate 700 random variates from a Normal ( μ = 40, σ = 3 ) distribution.
(1) Label the variable as X. (Do NOT include these 700 random variates in your output.)
(2) Graph your 700 random variates in a histogram with the normal curve superimposed, by taking a computer screenshot.
(3) Using complete sentences, state whether or not your data really do appear to be from a normal distribution, based on your histogram in part B2.
(4) Determine the sample mean ( X ), sample standard deviation ( s ), and sample variance ( s 2 ) of your 700 random variates using SPSS. Include this output in a computer screenshot.
(5) Highlight the sample mean ( X ) in YELLOW, the sample standard deviation ( s ) in PINK, and the sample variance ( s 2 ) in GREEN.
(6) Using complete sentences, state whether or not your statistics X, s, and s 2 are close to the parameters μ = 40, σ = 3, and σ 2 = 9, respectively.
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(C) Final format:
(1) Write your name and JMU email address at the top of your output.
(2) Although you are allowed to receive help from others, list in parentheses the names of those who helped you and the names of those whom you helped, as well as what type of help was given. If you did not give or receive help, then write "No help" next to your name.
(3) WARNING: Sharing ELECTRONIC copies of SPSS homework in part or in full is a university honor code violation.
(4) Turn in all appropriate output from SPSS in the order in which the exercises are assigned.
(5) Label your output as parts C1, C2, A, B2, B3, B5, B6 in BLUE.
(6) Avoid losing points due to sloppiness: Do NOT include extra junk; e.g., unrequested tables from SPSS.
(7) Post your homework as ONLY ONE .pdf file to Canvas. Do NOT email me your homework.
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