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melamori03 [73]
3 years ago
14

Need help...,.......

Mathematics
1 answer:
Allisa [31]3 years ago
5 0
I hope this helps you

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Physicians at a clinic gave what they thought were drugs to 860 patients. Although the doctors later learned that the drugs were
Alexus [3.1K]

Answer:

Z=2.36

P=0.0091

Step-by-step explanation:

The hypothesis is:

π > 0.55 which is the population proportion

The formula to get the test statistic is

Zstat = P-π/√π(1-π)/n

P =507.4/860 = 0.59 (sample proportion )

n =860 (sample size)

π =0.55(population porportion)

Zstat = 0.59-0.55/√0.55(1-0.55)/860

Zstat =2.36

From Z table the probability of Z score of 2.36 is 0.9909

To calculate for P- value will then be

P= 1 - 0.9909

P= 0.0091

4 0
3 years ago
PLEASE HELP! WILL GIVE BRAINLIEST!
Alex Ar [27]
The one in the middle you can tell because when x=0 that is the y intercept and the graph had a y intercept of 4 and the middle graph had 5
6 0
3 years ago
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3x+3y+2(2x-y) equivalent fractions to this problem
Anastaziya [24]
Distribute the 2 into the 2x and -y

Then add “like terms” which are 3x and 4x... 3y and -2y

Which then becomes 7x+y

There are no more “like terms” so that is your final answer

6 0
3 years ago
Solve four sixths plus one third
koban [17]

Answer:

Solve four sixths plus one third

The answer is 1

4 0
2 years ago
I beg someone to answer ive posted this 3 times and im still not sure how to do it.....
Anni [7]

Answer:

D) 3 X 10⁷

Step-by-step explanation:

<u>Estimated days:</u>

  • Jan 2000 to June 2001 = 1.5 years = 365*1.5 days ≈ 548 days

  • 1 day = 24 hours = 24*60 minutes = 24*60*60 seconds =
  • 86400 seconds

  • 548 days = 548 * 86400 seconds =
  • 47347200 ≈ 4.7*10⁷

Best estimate is D) 3 X 10⁷

8 0
3 years ago
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