In a recent poll, 600 people were asked if they liked soccer, and 72% said they did. based on this, construct a 99% confidence interval for the true population proportion of people who like soccer.

as in the reading, in your calculations:
--use z = 1.645 for a 90% confidence interval
--use z = 2 for a 95% confidence interval
--use z = 2.576 for a 99% confidence interval.

give your answers as decimals, to 4 decimal places.

out of 500 people sampled, 80 had kids. based on this, construct a 90% confidence interval for the true population proportion of people with kids.

as in the reading, in your calculations:
--use z = 1.645 for a 90% confidence interval
--use z = 2 for a 95% confidence interval
--use z = 2.576 for a 99% confidence interval.
give your answers to three decimals

give your answers as decimals, to three decimal places.

(0.6728, 0.7672)

(0.1330, 0.1870)

Step-by-step explanation:

Given that in a recent poll, 600 people were asked if they liked soccer, and 72% said they did.

Std error =

Margin of error for 99% we would use the value

Margin of error =

Confidence interval lower bound =

Upper bound =

99% confidence interval for the true population proportion of people who like soccer.=(0.6728, 0.7672)

b) n =500

Sample proportion p=

Margin of error for 90% =

90% confidence interval for the true population proportion of people with kids. =

Shania is correct.

Step-by-step explanation:

For a right angled triangle, given two sides and an angle, we can use the sine rule or the various trigonometry identities to solve the triangle;

a/sin A = b/sinB

and

sin (angle) = opposite side/hypotenuse

cos (angle) = adjacent side/hypotenuse

tan (angle) = opposite/ adjacent

assuming a is the opposite side of angle A and b is also opposite of angle B

Otherwise, the only way to solve a triangle given two sides only is by the use of the Pythagoras theorem.

Hence, Shania is correct.