Answer:
The 95% confidence interval of the proportion of all adults that have high blood pressure is 0.17059 <
< 0.314695
Step-by-step explanation:
The confidence interval for a proportion is given by the following formula;

Where:
x = 33
n = 136
= x/n = 33/136 = 0.243
z value for 95% confidence is 1.96
Plugging in the values, we have;

Which gives;
0.17059 <
< 0.314695
Hence the 95% confidence interval of the proportion of all adults that have high blood pressure = 0.17059 <
< 0.314695
From the above we have;
23.2 < x < 42.798
Since we are dealing with people, we round down as follows;
23 < x < 42.
Answer: 3
Step-by-step explanation:
6/8 is the same as 3/4;
there are 3 lots of 1/4 in 3/4
Answer:
2:3
Step-by-step explanation:
64x2.40 = 153.6
64x1.90 = 121.6
add 153.6 to 121.6
275.2