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# A truck company wants on-time delivery for 98% of the parts they order from a metal manufacturing ...

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Posts: 219
3 weeks ago
A truck company wants on-time delivery for 98% of the parts they order from a metal manufacturing plant. They have been ordering from Hudson Manufacturing but will switch to a new, cheaper manufacturer (Steel-R-Us) unless there is evidence that this new manufacturer cannot meet the 98% on-time goal. As a test the truck company purchases a random sample of metal parts from Steel-R-Us, and then determines if these parts were delivered on-time. Which hypothesis should they test?

▸ H0: p = 0.98
HA: p > 0.98

▸ H0: p > 0.98
HA: p = 0.98

▸ H0: p = 0.98
HA: p ≠ 0.98

▸ H0: p = 0.98
HA: p < 0.98

▸ H0: p < 0.98
HA: p > 0.98
Textbook

## Stats: Modeling the World

Edition: 4th
Authors:
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Posts: 243
3 weeks ago

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wrote...
3 weeks ago
 Thank you for answering so quickly
wrote...
3 weeks ago
 Was feeling bored, my pleasure
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