The life in hours of a 75-watt light bulb is known to be normally distributed with o = 25 hours. A random sample of 24 bulbs has a mean life ofx = 1014 hours. (a) Construct a 95% two-sided confidence interval on the mean life. Round your answers to the nearest integer (e.g. 9876). i e Textbook and Media

Q: 2 3 (25-x2) 2

A: Given:The integral is,

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A: The expression is given as 1+–3m+–9m+4+5+–10m. Simplifying the given expression. 1+–3m+–9m+4+5+–10m…

Q: 18) 2x y

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Q: b) S 9+x

A: ∫x39+x8dx

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A: Given: 4(5+6)=

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A: To evaluate-2(5a)

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A:

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A: Given query is to expand (n+4)3

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A:

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A: 9 times 8 means adding 8 upto 9 times or multiply 8 by 9.

Q: (9, -7) (3, 1). Find 吕 ロ师仁 ?

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Q: ) 2x+4 16

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Q: 8 15 2 15

A: 8/15 -2/15 here simple substraction given and fraction is given  calculation is given inbelow

Q: 6(-3w+1/3)

A: