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OlgaM077 [116]
3 years ago
13

In the largest clinical trial ever​ conducted, 401,974 children were randomly assigned to two groups. the treatment group consis

ted of​ 201,229 children given the salk vaccine for​ polio, and the other​ 200,745 children were given a placebo. among those in the treatment​ group, 33 developed​ polio, and among those in the placebo​ group, 115 developed polio. if we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children given the salk​ vaccine, are the requirements for a hypothesis test​ satisfied? explain.
Business
1 answer:
Pachacha [2.7K]3 years ago
4 0
<span>The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the number of successes is at least 5 and the number of failures is at least 5.</span>
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Liono4ka [1.6K]
I believe it’s C I’m not sure
4 0
4 years ago
Mary agrees with this logic: if all violins are musical instruments, and if all musical instruments make noise, then all violins
Nata [24]
<span>Based on this information, we would conclude that mary is in the concrete operational stage of development. The concrete operational stage of development is the third stage of Piaget's theory of cognitive development. In this stage it shows how someone starts thinking as a child grows up and it relates to logical thoughts as they get older. </span>
7 0
4 years ago
True or false? mama's pies wants to add another store to sell its pastries. it costs $400,000 to build the new store and the new
DerKrebs [107]
I feel like this is a trick question because it would not be that simple of a decision but if those were the only two things to consider then I guess it would be true. But in real life you would have to worry about employment costs, advertisement of the new store, who will manage each store when you are at the other store, etc. There would be so many more things going into that decision than just 450,000-400,000=50,000. But I would go with true.

Hope that helps.
4 0
4 years ago
If over a short time there is an increase in the number of people retired and a decrease in the number of people working, then p
lesantik [10]

Answer:

a. rises but real GDP per person falls

Explanation:

Gross domestic product is the total monetary value of output that is produced by an economy in a given period.

GDP increases as the income increases. This is because people have more money to spend on goods and services.

So if people are retiring they will earn pension that will be spent. This increases productivity of the economy.

However since the number of people working is reducing there will be a reduction in real GDP per person. Only few people are producing and output will be allocated to a large population many of whom are not working.

6 0
4 years ago
3. What challenges do you anticipate in implementing some of the above steps? Explain.
erica [24]

In implementing some of your steps, anticipate the challenges as they are bound to e related to your specific goal.

<h3>What are challenges?</h3>

Generally, challenges are simply a competitive situation to determine who is superior in a specific field.

In conclusion, in carrying out set goals, missions, or said steps or series of activities we tend to meet challenges, and these challenges are anticipated by the nature of activity.

Read more about Humans

brainly.com/question/18540902

6 0
2 years ago
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