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Nata [24]
3 years ago
6

Greatest president ~ A Gallup Poll of American adults in February 2009 asked the following question. "Which of the following pre

sidents would you regard as the greatest: Washington, Franklin Roosevelt, Lincoln, Kennedy, or Reagan?" The order of the presidents was rotated to avoid bias. Based on the sample, a 95% confidence interval for the actual proportion American adults who choose Lincoln as the greatest is given by (0.1759, 0.2204).
What is the sample proportion? Give the exact answer as a decimal.
Mathematics
1 answer:
Anastasy [175]3 years ago
6 0

Answer:

The sample proportion is 0.19815

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound. The sample proportion is the halfway point between these two bounds, that is, the sum of the bounds divided by 2.

In this problem, we have that:

Lower bound: 0.1759

Upper bound: 0.2204

Sample proportion:

(0.1759 + 0.2204)/2 = 0.19815

The sample proportion is 0.19815

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5. Renee's baby sister weighs 7 pounds 2 ounces. How many ounces does her sister weigh?
notsponge [240]
5. 114 ounces .
Explaination : ONE pound is 16 ounces . 7 pounds would be 112. add 112 plus the 2 ounces = 114 ounces

6. a. FALSE, 4 kilograms is 4,000 grams
b. TRUE , 10 yards = 360 inches
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6 0
2 years ago
How many hours will it take a culture of bacteria to increase from 20 to 2000 if the growth rate per hour is 85%
galben [10]

Answer:

Approximately

7.5

hours

Step-by-step explanation:

Explanation:

We are trying to determine the value of

h

in the compound growth formula

XXX

20

×

(

1

+

0.85

)

h

=

2000

or, simplified:

XXX

1.85

h

=

100

Taking the

log

1.85

of both sides:

XXX

log

1.85

100

With the aid of my trusty spreadsheet:

XXX

h

≈

7.48582192

3 0
3 years ago
2+2 help please I will give brainliest
liberstina [14]
The answer is 4 isn’t it?
3 0
3 years ago
If you were given the data set $s $10, $10, $12, $13, $15, which measure of central
Katarina [22]

Answer:  Mode

<u>Step-by-step explanation:</u>

The given data set is:    10, 10, 12, 13, 15

Mean is the average - find the sum of the data set and divide by the number of terms in the set: \dfrac{10+10+12+13+15}{5} =\dfrac{60}{5}=12

Mean = 12

Median is the middle term (when the data set is ordered from least to greatest).

Median = 12

Mode is the term that appears the most.

Mode = 10

Since you want to show that the prices are low, you would choose the lowest value.  10 is lower than 12, so the Mode is lower than either the Mean or the Median.

7 0
3 years ago
If you were 2 years old in 2011 how old would you be in 2020?
Roman55 [17]

Answer:

11 years

Step-by-step explanation:

2 years that you were in 2011

2020-2011= 9

2+9=11

also meaning they were born in 2009

2020-2009 also equals 11

this prolly doesnt make sense but hope it helps :) <3

4 0
3 years ago
Read 2 more answers
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