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o-na [289]
3 years ago
8

If the population variances are assumed to be known in an application where a manager wishes to estimate the difference between

two population means, the 95 percent confidence interval estimate can be developed using which of the following critical values:
a. z = 1.645.
b. z = 1.96.
c. t value that depends on the sample sizes from the two populations.
d. z = 2.575.
Mathematics
2 answers:
Paha777 [63]3 years ago
7 0

Answer:

math because more math which equals math if your lucky that might equal more math

Step-by-step explanation:

Vlada [557]3 years ago
7 0

Answer:

hrre

Step-by-step explanation:

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Brainliest, HELP pleasee, and explain how you get your answer GOOD please.
kotykmax [81]

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A and B

Step-by-step explanation:

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2 years ago
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members of a soccer team raised $741.15 to go to a tournament. They rented a bus for $250 and budgeted $25.85 per player for mea
blsea [12.9K]

9514 1404 393

Answer:

  19 players

Step-by-step explanation:

The total being spent is ...

  bus cost + (per player cost) × (number of players) = total raised

  250 + 25.85p = 741.15

  25.85p = 491.15

  p = 491.15/25.85 = 19

The team could bring 19 players to the tournament.

6 0
2 years ago
Which point is not on the graph of y =2x + 3?
Nostrana [21]

Answer:

i'm pretty sure its D

Step-by-step explanation:

if you make a graph yourself you'll see all the rel;relationship match except for d

3 0
3 years ago
Swimming Fleury swam 6 laps the first day,15 laps the second day,24 laps the third day, and so on.On which day will fleury swim
mihalych1998 [28]
Fleury will swim 51 laps on the sixth day if this pattern continues.
7 0
3 years ago
An isosceles triangle with equal sides of 5 inches and a base of 6 inches is inscribed in a circle. What is the radius, in inche
nikklg [1K]
Wow this is a doozy! First you have to figure out what is it you are looking for? If you make a dot in the center of the triangle (which is also the center of the circle) and draw a line from the center to one of the vertices of the triangle you have the radius of the triangle and also of the circle. If you draw all 3 radii from the triangle's center to its vertices, you see you have created 3 triangles within that one triangle.  The trick here is to figure out what your triangle measures are as far as angles go.  If we take the interior measures of those 3 triangles, we get that each one has a measure of 120 (360/3=120). So that's one of your angles, the one across from the side measuring 6. Because of the Isosceles Triangle theorem, we know that the 2 base angles have the same measure because the sides are the same. Subtracting 120 from 180 gives you 60 which, divided in half, makes each of those remaining angles measure 30 degrees. So if we extract that one triangle from the big one, we have a triangle with angles that measure 30-30-120, with the base measuring 6 and each of the other sides measuring 5. If we then split that triangle into 2 right triangles, we have one right triangle with measures 30-60-90. Dropping that altitude to create 2 right triangles not only split the 120 degree angle at the top in half, it also split the base side of 6 in half. So our right triangle has a base of 3 and we are looking for the hypotenuse of that right triangle.  WE have to use right triangle trig for that. Since we have the top angle of 60 and the base of 3, we can use sin60=3/x.  Solving for x we have x=3/sin60 which gives us an x value of 3.5 inches rounded from 3.464. I'm not sure what you mean by a mixed number unless you mean a decimal, but that's the radius of that circle.
6 0
3 years ago
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