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Bas_tet [7]
3 years ago
9

The owners of an amusement park selected a random sample of 200 days and recorded the number of park patrons with annual passes

who visited the park on each selected day. They computed a 90% confidence interval for the number of patrons with annual passes who visit the park daily. How would you interpret the 90% confidence interval of (35, 51)? a. There is a 90% chance that the population mean number of patrons with annual passes who are in the park on any given day is between 35 and 51. b. The method used to calculate the confidence interval has a 90% chance of producing an interval that captures the population mean number of annual pass holders in the park on any given day. c. Ten percent of the population of annual pass holders visit the park on any given day. d. There is a 90% chance that the sample percentage of park patrons with annual passes is contained in the interval 35 to 51.
Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

b. The method used to calculate the confidence interval has a 90% chance of producing an interval that captures the population mean number of annual pass holders in the park on any given day.

Step-by-step explanation:

The confidence interval calculated from the sample at a particular confidence level, gives a certain percentage of confidence based on the confidence level that the true mean of the population exists within the confidence interval Calculated.

For the scenario above, we can say that there is a 90% chance that the population mean number of annual pass holders in the park on a given day is within the interval (35, 51)

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I need this for sis!:D I will give thanks!
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3 years ago
A) x = -2<br> B) y =2<br> C) y= -2
LenKa [72]

Answer:

Step-by-step explanation:

This is a positive parabola so it opens upwards. The equation for the directrix of this parabola is y = k - p. k is the second number in the vertex of the parabola which is (0, 0), but we need to solve for p.

The form that the parabola is currently in is

y=a(x-h)^2+k so that means that a=\frac{1}{8}. We can use that to solve for p in the formula

p=\frac{1}{4a} so

p=\frac{1}{4(\frac{1}{8}) } which simplifies to

p=\frac{1}{\frac{1}{2} } which gives us that

p = 2. Now to find the directrix:

y = k - p becomes

y = 0 - 2 so

y = -2, choice A.

6 0
3 years ago
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8 0
2 years ago
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Can someone please how to do fractions in the lowest terms
VikaD [51]

Answer:

In order to out a fraction in lowest terms, you must divide by the Greatest Common Factor, or GCM, of the numerator and denominator in the fraction. Let's say we have the fraction 25/100. We know that the greastest common factor of 25 and 100 is 25, as 25 ÷ 25 = 1 and 100 ÷ 25 = 4 so 25/100 in lowest terms is 1/4:

25        25       1

___  ÷ ___ = ___

100      25       4

If the GCM of a fraction equals 1, the fraction is simplified. Because the only common factor of 1 and 4 is 1, we know this fraction is simplified.

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6 0
3 years ago
Solve the inequality <br> 3x/2- 2 &gt; 7
In-s [12.5K]

Answer:

<h3>NO SOLUTIONS</h3>

Step-by-step explanation:

To solve this problem, first, you have to isolate x on one side of the equation.

3x/2-2>7

3x/2-2-7>7-7 (First, subtract 7 from both sides.)

7-7 (Solve.)

7-7=0

3x/2-2-7>0

3x/2-2*0-7*0>0*0 (Then, multiply 0 from both sides.)

0*0 (Solve & simplify.)

0*0=0 (undefined & no solutions)

In conclusion, there are no solutions.

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3 years ago
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