Answer:
The 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).
Step-by-step explanation:
The information provided is:

The critical value of <em>z</em> for 90% confidence level is, 1.645.
Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

Thus, the 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).
This interval implies that there is 90% probability that the true mean annual income of all company presidents is within this interval.
Answer:
Answer = $349 before buying the bike
Step-by-step explanation:
X x 2 - 50 = 299
50+299= 349
X x 2 = 349 x 2
2x =349 x 2
2x = 698
698 divided by 2 = <em><u>349</u></em>
The rounded number is 140000
Answer:
height of this trapezoid is 14 inches.
Step-by-step explanation:

[ Here lengths, a = 17 and b = 10 and area of trapezium given 189 ]
using the formula:




For more trapezoid related questions: https://brainly.in/question/35963763
30, radius is equal to half the diameter, so to get diameter from the radius, multiply the radius by two.