A university was interested in examining the overall effectiveness of its online statistics course, along with the effectiveness of particular aspects of the course. First, the university wanted to see whether the online course was better than a standard course. Second, the university wanted to know whether students learned best using Excel, using RStudio, or using no statistical package at all. The university randomly selected a group of 30 students and administered one of the different variants of the course (i.e., traditional or online, coupled with one of the software options) to each student. The success of each variant was measured by the students' average improvement between a pre-test and a post-test. How many treatment groups are there in this study? a. 3
b. 4
c. 5
d. 6
e. 7

Answers

Answer 1

Answer:

Answer:

A university was interested in examining the overall effectiveness of its online statistics course, along with the effectiveness of particular aspects of the course. First, the university wanted to see whether the online course was better than a standard course. Second, the university wanted to know whether students learned best using Excel, using RStudio, or using no statistical package at all. The university randomly selected a group of 30 students and administered one of the different variants of the course (i.e., traditional or online, coupled with one of the software options) to each student. The success of each variant was measured by the students' average improvement between a pre-test and a post-test. How many treatment groups are there in this study?

Option D is correct - There are 6 treatment groups in this study.

Step-by-step explanation:

The number of treatment groups is equal to the number of possible combinations of the values of the factors.

In the question given, we have two factors: type of instruction (traditional/online) and software (Excel/Minitab/none).

Since there are 2 values for 'type of instruction' and 3 values for 'software'. Hence the number of treatment groups = 2*3 = 6.

Answer 2

Answer:

Answer:

The answer is D: 5

Step-by-step explanation:

-Online course,

-Program to use,

- Number of students,

-Administered variant,

-Measurement of the average student.

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Answers

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Answers

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Step-by-step explanation:

Since we have given that

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Answers

Answer:

Step-by-step explanation:

so because there is 1 cup of kernels which makes 4 cups of pop corn and there are 8 cups of crenels you would multiply 8 and 4.

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(-3,-1)

Answers

Answer:

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Step-by-step explanation:

found the info on a random website

There is an average of 3.5×10−2 kilograms of dissolved salt in each liter of seawater. The South China Sea contains approximately 9.88×1018 liters of seawater. How many kilograms of dissolved salt are in the South China Sea? Enter your answer, in scientific notation, in the boxes.

Answers

Answer:

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Step-by-step explanation:

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_____

Comment on significant digits

It would be appropriate to round the answer to 2 significant digits, matching the number of significant digits in the least-precise factor. Then the answer would be 3.5×10¹⁷ kg.

_____

Comment on scientific notation problems

Your scientific calculator can show results in scientific notation.

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Answers

Answer:

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Step-by-step explanation:

Given

Graphs A, B and C

Required

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