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Mariana [72]
2 years ago
12

Tareq pays $22.10 for 2,6 pounds of salmon, What is the price per pound of the salmon? (20PTS FOR THIS)

Mathematics
2 answers:
Alexeev081 [22]2 years ago
7 0
B

22.10 divided by 2.6 is 8.5 or $8.50
antiseptic1488 [7]2 years ago
7 0
The answer is b! Good luck
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A doctor is measuring the mean systolic blood pressure of female students at a large college. Systolic blood pressure is known t
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Answer:

The correct option is (b).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean (<em>μ</em>) is:

CI=\bar x\pm z_{\alpha/2}\times\frac{SD}{\sqrt{n}}

The confidence interval for population mean can be computed using either the <em>z</em>-interval or <em>t</em>-interval.

The <em>t</em>-interval is used if the following conditions are satisfied:

  • The population standard deviation is not known
  • The sample size is large enough
  • The population from which the sample is selected is normally distributed.

For computing a (1 - <em>α</em>)% confidence interval for population mean , it is necessary for the population to normally distributed if the sample selected is small, i.e.<em>n</em> < 30, because only then the sampling distribution of sample mean will be approximated by the normal distribution.

In this case the sample size is, <em>n</em> = 28 < 30.

Also it is provided that the systolic blood pressure is known to have a skewed distribution.

Since the sample is small and the population is not normally distributed, the  sampling distribution of sample mean will not be approximated by the normal distribution.

Thus, no conclusion can be drawn from the 90% confidence interval for the mean systolic blood pressure.

The correct option is (b).

5 0
2 years ago
The current of a river is 4 miles per hour. A boat travels to a point 30 miles upstream and back in 4 hours. What is the speed o
Kobotan [32]

If it took 4 miles per hour you multiply that twice cuss its traveling back then forth so you repeat the same process 30 miles times 2 which is 60 hope this helps.

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3 years ago
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I need some help with this math problem
gizmo_the_mogwai [7]

Step-by-step explanation:

15 long

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