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professor190 [17]
4 years ago
6

A 90% confidence interval for a proportion is found to be (0.62, 0.68). What is the sample proportion?

Mathematics
2 answers:
baherus [9]4 years ago
4 0

Answer:B. 0.65

Step-by-step explanation:

Ludmilka [50]4 years ago
3 0

Answer:

B. 0.65

Step-by-step explanation:

Sample proportion is the point estimate of the population proportion which is at the centre of the interval

(0.62+0.68)/2

1.30/2

0.65

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Can someone plz help me with this one problem plz!!!
maksim [4K]

answer is d or c because when u find Mean u add all numbers the. divide and median is middle number

Step-by-step explanation:

mean us 7.5 median is 6 asssss

7 0
3 years ago
The measure of angle ABD is (0.15x+65) and the measure of angle CBD is(0.1x+28) . Find the value of x.
Andrej [43]

Answer:

x = 348

Step-by-step explanation:

The measure of angle ABD is (0.15x+65) and the measure of angle CBD is(0.1x+28) . Find the value of x.

0.15x + 65 + 0.1x + 28 = 180

0.25x + 93 = 180

0.25x = 180 - 93

0.25x = 87

x = 87/0.25

x = 348

3 0
3 years ago
Helppppppppppppppppp
antoniya [11.8K]

Answer:

The answer will be 24

Step-by-step explanation:

Hope this Helped

3 0
3 years ago
Read 2 more answers
Adult men have heights with a mean of 69. 0 inches and a standard deviation of 2. 8 inches. find the z-score of a man who is 71.
Anarel [89]

The value of the z score is 1.03.

According to the statement

we have given that the value of mean and standard deviation and we have to find the value of the z score.

So, For this purpose we know that the

Z-score indicates how much a given value differs from the standard deviation. The Z-score, or standard score, is the number of standard deviations a given data point lies above or below mean.

And the given values are:

mean value = 69 inches

s.d value = 2.8 inches

And the value of x is 71.9 inches.

So, The Z score is

z = x - mean / standard deviation

substitute the values in it then

z = 71.9 - 69 / 2.8

then

z = 2.9 /2.8

z  = 1.03

So, The value of the z score is 1.03.

Learn more about Z Score here

brainly.com/question/25638875

#SPJ4

8 0
1 year ago
Pls help help me need help!!
BARSIC [14]

Answer:

50 feet

Step-by-step explanation:

\mid -20 \mid +\mid 30\mid = \\\\20+30= \\\\50

Hope this helps!

6 0
3 years ago
Read 2 more answers
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