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alexira [117]
3 years ago
9

To order a class ring, students must decide on a gold, silver, or white gold band and one of 15 stones. They must also choose fr

om one of 30 activity symbols to put on the side. How many different ring selections are there?
450
540
1,350
Mathematics
2 answers:
pantera1 [17]3 years ago
5 0
The best and most correct answer among the choices provided by your question is the third choice. There are 1350 different ring selections.

It is because:

3*15*30 = 1,350
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
marysya [2.9K]3 years ago
5 0

The correct answer would be the third option: 1,350

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Answer:

since -3.73 is less than 1.645, we reject H₀.    

Therefore this indicate that the proposed warranty should be modified

Step-by-step explanation:

Given that the data in the question;

p" = 13/20 = 0.65

Now  the test hypothesis;

H₀ : p = 0.9

Hₐ : p < 0.9

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Z = (p" - p ) / √[p×(1-p)/n]

= (0.65 - 0.9) /√[0.9 × (1 - 0.9) / 20]  

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Now given that a = 0.05,

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Now since -3.73 is less than 1.645, we reject H₀.    

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Step-by-step explanation:

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