Mathematics, 14.12.2020 21:30 valejuan

Select the correct answer. The data manager for a state political party gathered data to determine how many citizens would support the party’s senate candidate. He polled citizens in 30 similarly sized senate districts and found a sample mean of 70,438 citizens. Statewide data shows that the population standard deviation is 645.3. What is the approximate 90% confidence interval for this situation?

A.
70,134 and 70,742
B.
70,244 and 70,632
C.
70,403 and 70,473
D.
70,207 and 70,669

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:30, andrewmena05

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Answers: 2

continue

Mathematics, 21.06.2019 23:40, christinasmith9633

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.

Answers: 1

continue

Mathematics, 22.06.2019 00:00, jdaballer3009

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6

Answers: 1

continue

Mathematics, 22.06.2019 04:30, cuppykittyy

Write a linear funtion f with the values f(2)=-1, and f(5)=4