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miv72 [106K]
3 years ago
5

Dr. Oswald conducts a study examining the relationship between the number of friends one has and the experience of daily stress

and life satisfaction. She randomly samples 1,500 elderly men and women in the Memphis, Tennessee, area in the southern United States. Below are her findings. < Life satisfaction and experience of daily stress: r = −.57 ( p = .01) < Number of friends one has and experience of daily stress: r = .09, not sig. < Number of friends one has and life satisfaction: r = .36 ( p = .04) According to the benchmarks established by Cohen, what type of effect size has Dr. Oswald found for the association between number of friends and life satisfaction?
Mathematics
1 answer:
Alina [70]3 years ago
6 0

Answer:

I believe the answer is: These scores are more likely to have an effect because of the large sample size

In asking about satisfaction, the data could only come from the life experiences or personal principle of the individuals in the samples. Because of this, the scores would have relatively same effect regardless of the amount of sample size that the researchers use.

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Four randomly chosen Nevada students were asked how many times they drove to Arizona last year. Their replies were 4,5,6,7. The
den301095 [7]

The geometric mean of the numbers is 5.38

Given the values a, b, c and d

Geometric mean of the values will be expressed as:

GM = (abcd)^1/4

Given the values 4, 5, 6 and 7, the geometric mean will be expressed as:

GM = (4×5×6×7)^1/4

GM = (840)^1/4

GM = 5.38

Hence the geometric mean of the numbers is 5.38.

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8 0
3 years ago
X-7= -3(x+1) over 5<br><br> What is x?
laila [671]

Answer:

x=4

Step-by-step explanation:

Multiply to remove the fraction, then set equal to  0  and solve.

6 0
3 years ago
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Climbing at an indoor rock-climbing gym costs $8 per hour. Lizbeth has a $30 gift card to spend at the gym. Write an algebraic e
Aleks04 [339]

Answer:

8h=30

Lizbeth can not climb for 4.5 hours.

Step-by-step explanation:

If you plug in 4.5 for h you get

8(4.5)=30

36 does not equal 30

Therefore Lizbeth can't climb for 4.5 hours

6 0
3 years ago
Based on the graphs of the equations y = –2x + 3 and y = x2 – x + 1, the solutions are located at points:
Ray Of Light [21]

The solutions of the equations are the point of intersection of the equations

The solutions are located at points (-2,7) and (1,1)

<h3>How to determine the solutions?</h3>

The equations are given as:

y = –2x + 3 and y = x2 – x + 1

Next, we plot the graph of both equations

From the graph of the equations (see attachment), we have the solution to be:

(x,y) = (-2,7) and (1,1)

Hence, the solutions are located at points (-2,7) and (1,1)

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8 0
2 years ago
Scores on the Wechsler Adult Intelligence Scale (WAIS) are approximately Normal with mean 105 and standard deviation 16. People
erik [133]

Answer:

2.5% of adults are intellectually disabled by this criterion

Step-by-step explanation:

The Empirical Rule(68-95-99.7 rule) states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 105

Standard deviation = 16

The normal distribution is symmetric, which means that 50% of the measures are below the mean and 50% are above.

What percent of adults are intellectually disabled by this criterion

Below 73

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So 73 is 2 standard deviations below the mean.

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0.05*0.5 = 0.025

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2.5% of adults are intellectually disabled by this criterion

7 0
3 years ago
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