The CEO of battery manufacturing company claims that an average battery lasts 300 days. A researcher randomly selects 15 battery for testing. The sampled battery last an average of 290 days, with a...


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The CEO of battery manufacturing company claims that an<br>average battery lasts 300 days. A researcher randomly<br>selects 15 battery for testing. The sampled battery last an<br>average of 290 days, with a standard deviation of 50 days.<br>If the CEO's claim were true?<br>Ho: The 15 randomly selected battery would have an<br>average life of no more than 290 days.<br>

Extracted text: The CEO of battery manufacturing company claims that an average battery lasts 300 days. A researcher randomly selects 15 battery for testing. The sampled battery last an average of 290 days, with a standard deviation of 50 days. If the CEO's claim were true? Ho: The 15 randomly selected battery would have an average life of no more than 290 days.

Jun 07, 2022
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