7. Comment on the descriptive statistics (i.e., means, standard deviations) and internal consistency reliabilities in the...

7. Comment on the descriptive statistics (i.e., means, standard deviations) and internal consistency reliabilities in the table below adapted from Erdogan and Bauer (2009) and summarize the correlation results, taking into account the strength, direction, and statistical significance of the bivariate relationships. (6 points)

Predictors (independent variables): Perceived over-qualification; empowerment Controls (independent variables): Age; tenure Dependent variables: Job satisfaction

Table 1

Descriptive Statistics, Correlations, and Scale Reliabilities

		Alpha	Mean	SD	1	2	3	4
1	Age	-	21.90	2.47
2	Tenure	-	1.13	.97	.39**
3	Over-qualification	.72	4.35	1.35	.22**	-.02
4	Empowerment	.80	5.42	0.72	.07	.28**	.03
5	Job satisfaction	.81	5.80	0.86	-.11	.01	-.19*	.43**

Note: N=244. Age and tenure were measured in years. Perceptions of over-qualification, empowerment, and job satisfaction were measured on a 7-point Likert-type scale. *p < .05. **p < .01.

Expert Solution

orchestra answered 1 year ago

use methods of descriptive statistics to summarize the data and comment on your findings - Income...

use methods of descriptive statistics to summarize the data and comment on your findings - Income ($1000s) Household Size Amount Charged ($) 54 3 4,016 30 2 3,159 32 4 5,100 50 5 4,742 31 2 1,864 55 2 4,070 37 1 2,731 40 2 3,348 66 4 4,764 51 3 4,110 25 3 4,208 48 4 4,219 27 1 2,477 33 2 2,514 65 3 4,214 63 4 4,965 42 6 4,412 21 2 2,448 44 1 2,995 37...

The birthweights for a sample of babies are summarized below. The sample means and standard deviations...

The birthweights for a sample of babies are summarized below. The sample means and standard deviations are given for babies whose mothers smoked during pregnancy and for those whose mothers did not smoke. Mother did not smoke x? = 7.69 lb s1 = 1.148 lb n1 = 20 Mother smoked x? = 6.88 lb s2 = 1.389 lb n2 = 22 The researchers are looking for evidence that the mean birthweights are different. a. The null hypothesis is H0:...

The table below shows the means and standard deviations of the survival times (in days) of...

The table below shows the means and standard deviations of the survival times (in days) of some cancer patients who were treated with the same medication. Use these statistics to answer the question below. Type of Cancer Patient Mean Standard Deviation Breast 1395.9 1239.0 Bronchial 211.6 209.9 Colon 457.4 427.2 Ovarian 884.3 1098.6 Stomach 286.0 346.3 Which type of cancer patients (a) had the highest average survival time? (b) had the lowest average survival time? (c) had the most consistent...

Presented below are the means, standard deviations, and scores on various interval-ratio variables that are assumed...

Presented below are the means, standard deviations, and scores on various interval-ratio variables that are assumed to be normally distributed. For each problem, either use the Z table to find what percentage of the area under the normal curve lies above or below a given score, or compare two scores as requested. Show your work and state your answers in sentence form. 6. The average number of cats per U.S. household is 2.1, with a standard deviation of .9. Assume...

1. Two samples are taken with the following sample means, sizes, and standard deviations ¯x1 =...

1. Two samples are taken with the following sample means, sizes, and standard deviations ¯x1 = 31 ¯x2 = 35 n1= 73 n2= 67 s1= 2 s2 = 5 Estimate the difference in population means using a 99% confidence level. Use a calculator, and do NOT pool the sample variances. Round answers to the nearest hundredth. _____< μ1−μ2 <_____ 2. You are conducting a test of independence for the claim that there is an association between the row variable and...

Indicate if the hypothesis test is for a. independent group means, population standard deviations, and/or variances known...

Indicate if the hypothesis test is for a. independent group means, population standard deviations, and/or variances known b. independent group means, population standard deviations, and/or variances unknown c. matched or paired samples d. single mean e. two proportions f. single proportion 1. It is believed that 70% of males pass their drivers test in the first attempt, while 65% of females pass the test in the first attempt. Of interest is whether the proportions are in fact equal. 2. A new...

Two samples are taken with the following sample means, sizes, and standard deviations ¯x1 = 28...

Two samples are taken with the following sample means, sizes, and standard deviations ¯x1 = 28 ¯x2 = 26 n1 = 57 n2 = 73 s1 = 2 s2 = 3 Estimate the difference in population means using a 93% confidence level. Use a calculator, and do NOT pool the sample variances. Round answers to the nearest hundredth. < μ1−μ2

Consider two assets with means and standard deviations of returns given by arbitrary μ1 and σ1...

Consider two assets with means and standard deviations of returns given by arbitrary μ1 and σ1 > 0 for asset 1, and μ2 and σ2 > 0 for asset 2. Suppose that correlation of returns is different from −1, that is ρ12 > −1. Show that there is no portfolio of these two assets that has risk-free return. Consider only portfolios with positive weights, i.e., without short sales.

Two samples are taken with the following sample means, sizes, and standard deviations ¯ x 1...

Two samples are taken with the following sample means, sizes, and standard deviations ¯ x 1 x¯1 = 39 ¯ x 2 x¯2 = 26 n 1 n1 = 55 n 2 n2 = 75 s 1 s1 = 5 s 2 s2 = 3 We want to estimate the difference in population means using a 85% confidence level. What distribution does this require? t, df = 82 z NOTE: The more accurate df formula, used above, is: d f...

Given independent random variables, X and Y, with means and standard deviations as shown, find the...

Given independent random variables, X and Y, with means and standard deviations as shown, find the mean and standard deviation of each of the variables in parts a to d. a) X−11 b)0.7Y c)X+Y d)X−Y Mean SD X 90 13 Y 20 5 a) Find the mean and standard deviation for the random variable X-11.

Question