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mylen [45]
3 years ago
14

Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 wi

th a mean of 93.5. Which of the following correctly depicts the z-statistic for this data?
a. 0.28. b.0.36. c.1.98. d.2.63​
Mathematics
2 answers:
Elza [17]3 years ago
7 0

Answer:

Step-by-step explanation:

SOVA2 [1]3 years ago
7 0

Answer:

Answer is 1.98

You're welcome.

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Banneker Middle School has 750 students. Lynn surveys a random sample of 50 students and finds that 27 of them have pet dogs. Ho
Alika [10]

Answer: 405 students

Step-by-step explanation:

From the question, Banneker Middle School has 750 students and we are told that Lynn surveys a random sample of 50 students and finds that 27 have pet dogs. The number of students at the school that are likely to have pet dogs goes thus:

Since out of 50 students surveyed, 27 have pet dogs, this means we multiply the fraction by 750. This can be mathematically written as:

= 27/50 × 750

= 27 × 15

= 405

This means 405 students are expecting to have pet dogs.

3 0
3 years ago
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gtnhenbr [62]
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2 years ago
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Brrunno [24]
The answer would be A)12
4 0
3 years ago
The double number line shows that 4 bottles of water cost 10 dollars at a music festival ​
pickupchik [31]

Answer:

That means that each water is $2.50, das crazy tho

Step-by-step explanation:

4 0
3 years ago
Find x on the lines plz and thanks​
Triss [41]

Answer:

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