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kakasveta [241]
2 years ago
11

the mean weight of trucks traveling on a particular section of i-475 is not known. a state highway inspector needs an estimate o

f the population mean. he selects and weighs a random sample of 81 trucks and finds the mean weight is 15.8 tons. the population standard deviation is 3.8 tons. what is the 95% confidence interval (upper limit) for the population mean?
SAT
1 answer:
bekas [8.4K]2 years ago
4 0

Answer:

14.7 and 16.9

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Choose the excerpt that is from an opera aria by Mozart:
Irina-Kira [14]

The excerpt that is from an opera aria by Mozart is; Excerpt A

What is the given Excerpt?

Mozart was an Austrian composer, widely recognized as one of the greatest composers in the history of Western music. Unlike any other composer in musical history, he wrote in all the musical genres of his day and excelled in every one. His taste, his command of form, and his range of expression have made him seem the most universal of all composers; yet, it may also be said that his music was written to accommodate the specific tastes of particular audiences.

Mozart wrote several successful operas, such as The Marriage of Figaro (1786), Don Giovanni (1787), and The Magic Flute (1791). Mozart also composed a number of symphonies and sonatas. His last symphony—the Jupiter Symphony—is perhaps his most famous.

The given excerpt which is seen from an audio listened to online is seen to be Excerpt A.

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5 0
1 year ago
What is produced during the replacement reaction of Cu(NO3)2 and Zn? ZnNO3 Cu Zn Cu(NO3)2 ZnCu 2NO3 Zn(NO3)2 Cu
Pachacha [2.7K]

Answer:

Zn(NO3)2  +Cu

Explanation:

Replacement  reaction  is  a   type  of  chemical reaction in  which   an  element  react  with  a  compound  and  take the  place  of another  element  in that compound.

Zn  is  more reactive than  Cu, therefore Zn replaces   cu from   CU(NO3)2  to form  Zn(NO3)2  +Cu

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Read this excerpt from chapter 2 of The Scarlet Letter using comprehension strategies. It was no great distance, in those days,
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If taxes reduce consumer and producer surplus as well as create a deadweight loss, do we need them? Explain why or why not.
juin [17]

Answer:

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Explanation:

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