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ANEK [815]
2 years ago
5

To evaluate customer satisfaction, a grocery store gives double coupons to anyone who completes a survey as they enter the store

. The store manager determines that customers are very satisfied with their shopping experience in his store.
2. To evaluate the integrity of underground water lines, the department of public works randomly selects 20 sites in the city to unearth and observe the water lines. At 5 of the sites, the water lines needed repair. The department of public works concludes that about one-fourth of underground water lines throughout the city need repair.




3. To award prizes at a hockey game, four tickets with individual seat
numbers printed on them are picked from a barrel. Since Elvio’s
section was not selected for any of the four prizes, he assumes that
they forgot to include the entire section in the drawing.
Mathematics
1 answer:
sveticcg [70]2 years ago
8 0

are you a boy

Step-by-step explanation:

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A group of 59 randomly selected students have a mean score of 29.5 with a standard deviation of 5.2 on a placement test. What is
BigorU [14]

Answer:

29.5+/-1.11

= ( 28.39, 30.61)

Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 29.5

Standard deviation r = 5.2

Number of samples n = 59

Confidence interval = 90%

z-value (at 90% confidence) = 1.645

Substituting the values we have;

29.5+/-1.645(5.2/√59)

29.5+/-1.645(0.676982337100)

29.5+/-1.113635944529

29.5+/-1.11

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Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)

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3 years ago
What is the maximum number of boxes that can be purchased with $65.00?
snow_tiger [21]
What is the price of the individual boxes?
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2 years ago
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Find the final amount for a $1000 investment at 6% interest compounded continuously for 20 years
yarga [219]

Answer:$3207

Step-by-step explanation

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3 years ago
Bridgette made a graph of her neighborhood on a coordinate grid. The points A(-2, 3), B(-2, -2), C(2, -2), and D(2, 3) represent
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Answer:

\boxed{\text{18 blocks}}

Step-by-step explanation:

Distance travelled on graph = AB + BC + CD + DA  

AB = CD  = (3 +2) = 5

BC = AD = 2 –(-2) = 4

Distance on graph = 2 × 5 + 2 × 4 = 10 + 8 = 18 spaces = 18 blocks

Bridgette jogs \boxed{\textbf{18 blocks}}each day.

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3 years ago
Х<br> g(x)<br> -7<br> -4<br> -3<br> -4<br> *2<br> 1<br> 1<br> 2<br> -h statement in truon
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and I have to be a good guy and a great guy and a good man to help him out and

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