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Pavel [41]
3 years ago
10

A researcher wants to conduct a study to see if playing chess improves memory. The researcher finds 50 individuals who play ches

s regularly and 50 that do not. Each of the 100 individuals are given a questionnaire designed to determine memory level. If the 100 individuals did not know they were participating in the study, which statement about the study is correct?.
SAT
1 answer:
inna [77]3 years ago
6 0

Answer:

This is an observational study

Explanation:

just took the test

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Which of the following non-renewable resources of energy has the smallest amount of fuel left on earth?.
HACTEHA [7]

Answer:

Their is no answer choices but Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy.

Explanation:

3 0
2 years ago
A country that is concerned about inflation wants to:.
STatiana [176]

Answer:

Prevent its currency from losing value too quickly.

Explanation:

6 0
3 years ago
Which of the following is an accurate statement about sample size
aivan3 [116]

The option that is an accurate statement about Sample Size is; A: A larger sample size is needed for increased accuracy.

<h3>What is true about Sample Size?</h3>

Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample.

Now, the smaller the sample size, the lesser the accuracy as you have possibility of biased research from just a handful of people. However, the larger the sample, the greater the degree of accuracy of the research.

Thus, we can say that the option that is an accurate statement about Sample Size is; A: A larger sample size is needed for increased accuracy.

Complete question is;

Which of the following is an accurate statement about sample size?

Select one:

a. A larger sample size is needed for increased accuracy.

b. A smaller sample size will reduce the size of the confidence interval.

c. Sample size is a constant percentage of the population size.

d. Sample size is independent of the confidence interval.

Read more about Sample Size at; brainly.com/question/7757135

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4 0
2 years ago
Disregarding air resistance, what is the speed of a ball dropped from 12 feet just before it hits the ground? (use 1 ft = 0. 30
Gelneren [198K]

Answer:

B - 8.4 m/ is the correct answer.

Explanation:

8 0
3 years ago
Which of the following stakeholders would most likely use managerial accounting information
Phoenix [80]

The stakeholder that would most likely use managerial accounting information is:

  • Manager of a restaurant

<h3>Why would the manager need such information?</h3>

The manager of a restaurant will need accounting information to accurately determine the expenses and the income made at the end of every work period.

This will help him or her to properly account for the income of the organization to any superior authority.

For all of these reasons, we can say that the manager of a restaurant needs accounting information.

Learn more about accounting information here:

brainly.com/question/26261281

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4 0
2 years ago
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