Two friends, karen and jodi, work different shifts for the same ambulance service. they wonder if the different shifts average different numbers of calls. looking at past records, karen determines from a random sample of 35 shifts that she had a mean of 5.2 calls per shift. she knows that the population standard deviation for her shift is 1.3 calls. jodi calculates from a random sample of 34 shifts that her mean was 4.8 calls per shift. she knows that the population standard deviation for her shift is 1.2 calls. test the claim that there is a difference between the mean numbers of calls for the two shifts at the 0.05 level of significance.

(c) find the critical value.

19

step-by-step explanation:

srry idk

step-by-step explanation:

50x5=$250

step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc