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S_A_V [24]
3 years ago
13

A company is evaluating a new biology program that is supposed to improve test scores. The box plots show the the results of bio

logy test given before and after using the program. With the data, what is the most reasonable answer to the question: does the program improve test scores?
Mathematics
2 answers:
rjkz [21]3 years ago
5 0

Answer:

No, because the median test score decreased 5 points.

Step-by-step explanation:

The middle line is is the median so, if the pre-test is 60 and the post-test is 55 then there is a 5 point difference.

SOVA2 [1]3 years ago
3 0

Answer:

No, because the median test score decreased 5 points.

Step-by-step explanation:

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If an experimenter conducts a t test for independent means and rejects the null hypothesis, the correct interpretation is that:
lisabon 2012 [21]

Answer:  C

Step-by-step explanation:

Rejecting the null hypothesis means we've found a significant difference in the means.  That means the probability that we'd see means so far apart by chance is less than our threshold of significance.

4 0
3 years ago
Question 14 of 16
Goryan [66]

B, because you would just assume the line continues forever on both sides.

6 0
2 years ago
A chain fits tightly around two gears as shown. What is the radius of the smaller gear? Round your answer to the nearest tenth.
GrogVix [38]
Using the Pythagorean theorem we can solve for the radius

see attached picture: 

7 0
3 years ago
Read 2 more answers
Marie can find the volume of a cube by using the formula V = 53, where s represents the side length of the cube. If Marie's
dimulka [17.4K]

Answer:

The volume of her cube is 15.625cm^3

Step-by-step explanation:

The formula V = s³, where s represents the side length of the cube.

6 0
3 years ago
What is the missing value in the proportion 4/5 = x/30?
ra1l [238]

Answer:

\displaystyle x = 24

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\displaystyle \frac{4}{5} = \frac{x}{30}<u />

<u />

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Multiplication Property of Equality] Cross-multiply:                                      \displaystyle 5x = 120
  2. [Division Property of Equality] Divide 5 on both sides:                                \displaystyle x = 24
4 0
3 years ago
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