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frez [133]
3 years ago
7

Unknown mean μ

English
1 answer:
Aleonysh [2.5K]3 years ago
4 0

Answer:

The answer is below

Explanation:

The question is not complete, but I will solve a similar question. The question goes as:

A random sample of n measurements was selected from a population with unknown mean µ and known standard deviation σ. Calculate a 90% confidence interval for n = 49, ¯ x = 28, σ = 28

Solution:

A confidence interval is a range of numbers that contains a population parameter.

C = 90% = 0.9

α = 1 - C = 1 - 0.9 = 0.1

α/2 = 0.1/2 = 0.05

The z score of α/2 is the same as the z score 0.45 (0.5 - 0.05) which is equal to 1.65. Hence, the margin of error E is:

E=z_\frac{\alpha}{2}*\frac{\sigma}{\sqrt{n} }  =1.65*\frac{28}{\sqrt{49} } =6.6

The confidence interval = \bar x \pm E=28 \pm 6.6 = (21.4,\ 34.6)

The 90% confidence is between 21.4 and 34.6.

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Answer:

Hey! You probably came from the worksheet that asks you to complete the sentence in a way that shows you understand the italicized word. The word that was italicized in this sentence was <em>opulent</em> so I'll tell you what it means to help you out! Opulent's definition is 'rich, luxurious and lavish'. That kind of thing. So you can finish the sentence by describing the port's expensive items and how it was clearly for rich people by the way it was decorated with jewels, gold, etc. I hope this helped you in some way or another :)

6 0
3 years ago
How do paragraphs 4-5 contribute to the development of ideas in the text?
MatroZZZ [7]

Paragraphs 4-5 contribute to the development of ideas in the text because they explain how the gene drive changes mosquitoes’ DNA, as stated in option B.

<h3>What are paragraphs 4-5 about?</h3>

After reading paragraphs 4-5 of the text "Gene editing wiped out a population of mosquitoes in lab tests," we can tell they contribute the development of ideas by explaining how the gene drive works.

According to the information in paragraphs 4-5, the gene drive is used to change mosquitoes' DNA so that the female mosquito will not bite or procreate. By doing so, scientists would help prevent the spread of malaria, since it is through biting that the female mosquito transmits the disease.

With the information above in mind, we can choose option B as the correct answer.

The missing paragraphs 4-5 are the following:

The researchers changed the mosquitoes’ genes with a gene drive. Gene drives use the molecular “scissors” known as CRISPR/Cas9 to copy and paste themselves into an organism’s DNA at precise locations. They’re designed to break the rules of inheritance. They can quickly spread a genetic tweak to all offspring.

The new gene drive breaks a mosquito gene called doubles∈x. Female mosquitoes that inherit two copies of the broken gene develop like males. They are unable to bite or lay eggs. Being unable to bite means they can’t spread the malaria parasite. Males and females that inherit only one copy of the disrupted gene develop normally and are fertile. Males don’t bite, whether they have the gene drive or not.

Learn more about genes here:

brainly.com/question/284418

#SPJ1

5 0
2 years ago
On Friday evening, Shania and Roland were driving home from the movies. They stopped at a red light and were talking about the m
Ipatiy [6.2K]

Answer:

I would probably press charges if this is a book or sum i gtta read dis

Explanation:

7 0
3 years ago
3. In Act IV of Romeo and Juliet, why did Juliet's parents think she was crying?
strojnjashka [21]
<span>In Act IV of Romeo and Juliet, Juliet's parents thought she was crying because Tybalt was dead. But the real reason is Romeo, she was crying for him since she discovered that he has to leave to exile so she's worried they won't meet again.</span>
7 0
3 years ago
Create a comic strip of your favourite incident from the play ' The Tempest' or 'A Midsummer Night's Dream.'
pantera1 [17]

Answer:

Explanation:

I know "A Midsummer Night's Dream" pretty well.

You can have a scene with the Lovers. I had to do this as well, and I remember I had a comic where Puck puts the love potion in their eyes.

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