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Scatter - Minitab 19

Kursus Minitab Dasar memberikan pelatihan tentang analisis regresi linear menggunakan data baterai kamera. Peserta diajak membuat scatterplot untuk mengeksplorasi hubungan antara tegangan baterai setelah kilat dengan waktu pemulihan kilat, serta garis regresi dan garis acuan waktu pemulihan kritis 5,25 detik. Hasilnya menunjukkan tegangan di bawah 1,23 volt umumnya terkait dengan waktu pemulihan lebih dari 5,25 detik,

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Aulia Nova Kusumaningtyas
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147 views7 pages

Scatter - Minitab 19

Kursus Minitab Dasar memberikan pelatihan tentang analisis regresi linear menggunakan data baterai kamera. Peserta diajak membuat scatterplot untuk mengeksplorasi hubungan antara tegangan baterai setelah kilat dengan waktu pemulihan kilat, serta garis regresi dan garis acuan waktu pemulihan kritis 5,25 detik. Hasilnya menunjukkan tegangan di bawah 1,23 volt umumnya terkait dengan waktu pemulihan lebih dari 5,25 detik,

Uploaded by

Aulia Nova Kusumaningtyas
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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KURSUS MINITAB DASAR

U N T U K I N O V A S I D A N C O N T I N U O U S I M P R O V E M E N T A C T I V I T Y
Expert Club Indonesia

Latihan 8 - Regression

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Expert Club Indonesia

Latihan 8 - Regression
You are interested in how well your company's camera batteries are
meeting customers' needs. Market research shows that customers
become annoyed if they have to wait longer than 5.25 seconds
between flashes.
You collect a sample of batteries that have been in use for varying
amounts of time and measure the voltage remaining in each
battery immediately after a flash (VoltsAfter), as well as the length
of time required for the battery to be able to flash again (flash
recovery time, FlashRecov). Create a scatterplot to examine the
results. Include a regression line, as well as a reference line at the
critical flash recovery time of 5.25 seconds.

1 Open the worksheet BATTERIES.MTW.


2 Choose Graph > Scatterplot.
3 Choose With Regression, then click OK.
4 Under Y variables, enter FlashRecov. Under X variables, enter
VoltsAfter.
5 Click Scale, then click the Reference Lines tab.
6 In Show references lines for Y positions, type 5.25. Click OK
in each dialog box

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Expert Club Indonesia

Latihan 8 - Regression

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Expert Club Indonesia

Latihan 8 - Regression

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Expert Club Indonesia

Latihan 8 - Regression

Interpreting the results


As expected, lower voltages after a flash are associated with longer flash recovery times.
The regression line suggests that, in general, voltages lower than about 1.23 are
associated with recovery times greater than 5.25, though there is obviously a lot of
variability.
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Terimakasih
Expert Club Indonesia

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