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victus00 [196]
3 years ago
6

A sociologist wants to study popular attitudes and perceptions about astrology among college students in California. She believe

s that people who have astrological signs identified with fire will have a greater knowledge of astrology because fire signs tend to have more interesting and attractive symbolism. What are the variables in this study?A. astrological signs and knowledge of astrology. B. college students and symbolism. C. popular attitudes and perceptions. D. astrological signs and symbolism. E. California and college students
Business
1 answer:
Veseljchak [2.6K]3 years ago
3 0

Answer: Option A

Explanation: In simple words, variables refers to those factors or elements which have the tendency or ability to vary in different scenarios in a single study.

In the given case, sociologist made a study about the attitude. In which the subject is the college students and the factors that vary is the sign identified, that is whether it is fire or some other element.

Hence from the above we can conclude that the correct option is A.

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Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 3​%
marusya05 [52]

Answer:

There is sufficient evidence to conclude that the fund has moderate risk at the 0.05 level of significance

Explanation:

Given:

Sample size = 27months

n = 27

Let sigma = population standard deviation

Sigma = 3% = 0.03

s = sample standard deviation

s =2.19% = 0.0219

Alpha = 0.05

The mutual fund manager claims that his fund has moderate risk.

Hypothesis:

H0: Population standard deviation is equal to sample standard deviation.

H0 = sigma = 0.03

H1: Population standard deviation is not equal to sample standard deviation.

Alternative hypothesis:

H0< sigma = H0 <0.03

Degree of freedom = n-1 = 27-1 = 26

We would use the chi-square test to check if the standard deviation of a population is equal to a particular value

The test statistic:

x^2 = [(n-1)s^2]/ sigma^2

x^2 = [(27-1)*0.0219^2]/0.03^2

x^2 = [(26)*0.00047961]/0.03^2

x^2 = (0.01246986/0.03^2)

x^2 = 0.01246986/ 0.0009

x^2 = 13.8554

You can compare the value of your x^2 to a (degrees of freedom, alpha) chi squared critical value from a table (you can find such table online) or use an EXCEL formula

Using EXCEL formula to find p-value:

CHISQ.DIST(13.8554, 26, TRUE)

Type in the value of chi square as x,

Degree of freedom as = 26 and

TRUE (cumulative distribution function)

p-value = 0.025143

The level of significance = Alpha = 0.05

The decision rule states:

If p-value is less than or equal to level of significance, reject the null hypothesis.

Otherwise, do not reject the null hypothesis.

Since p-value is less than level of significance, we would reject the null hypothesis.

0.025143 < 0.05

Conclusion:

There is sufficient evidence to conclude that the fund has moderate risk at the 0.05 level of significance.

8 0
3 years ago
Who wants to have their paper proofread for free?
Angelina_Jolie [31]
No i DON'T..................................
6 0
2 years ago
Suppose real GDP is $6,178 billion, taxes collected by the government are $701 billion, government spending is $814 billion, and
TEA [102]

Answer:

$998 billion

Explanation:

National savings is the sum of private savings and public savings and it is also calculated by deducting consumption and government spending from gross domestic product (GDP).

National savings = Gross domestic product - consumption - Government purchases

                            = $6,178 billion - $4,366 billion - $814 billion

                             = $998 billion

7 0
3 years ago
AFW Industries has 214 million shares outstanding and expects earnings at the end of this year of $ 723 million. AFW plans to pa
hammer [34]

Answer:

32

Explanation:

32323

5 0
3 years ago
You receive results from the team engagement survey. According to the survey, your team members feel that the feedback they prov
andrew-mc [135]

Answer: Most: Discuss the issue with your team. Ask team members for suggestions on how to better incorporate their

Least: Talk to your peers who received similar feedback and brainstorm together on how to better engage the team.

Explanation:

You probably wish you could get more input from your employees if you're like most managers. Quality feedback will help all of you work together, improve your style of leadership, and make sure you catch problems before they become big issues.

While the members of your team must be the ones to come up with the ideas, there are many things you can do to make it better and more productive to produce them.

Your methodology offers an example.

7 0
2 years ago
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