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Ivan
3 years ago
15

To test the effectiveness of a new cold vaccine, a random sample of 50 people was selected. They were divided in two groups: one

consisted of 30 people who received the vaccine, and the other who did not receive the vaccine .What can we conclude about the effectiveness of this new cold vaccine (at a 5% level of significance) if in the first group 9 of the 30 who received the vaccine caught the cold, while in the other group 11 of the 20 people who did not receive the vaccine caught the cold.
Mathematics
1 answer:
Georgia [21]3 years ago
3 0

Step-by-step explanation:

Roll no irjdhrjejdjdjdndndnndbdnd dbdnsndnd

dnsnsnsjsnnzjznzjs

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The answer is $1071.43.

EXPLANATION

First, you need to know that with regards to this problem, loan and interest sums at $450,000 ($100,000+$340,000).

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4 years ago
A tiling company completes two jobs. The first job has $1200 in labor expenses for 40 hours worked, while the second job has $15
Lelu [443]

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4 years ago
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Answer:

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Step-by-step explanation:

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