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An organizational psychologist studied how satisfied employees were in two different companies. All employees were given a job satisfaction test on which scores could range from 1 to 7, with higher scores indicating greater satisfaction. The scores were as follows:
Company A: 4 6 5 4 3 2
Company B 4 4 4 4 4 4
Compute the mean and standard deviation for each company. Based on the result compare employee satisfaction in the two companies. How do the standard deviations help to interpret the means?
In order to study any possible relationship between age and change in systolic blood pressure (BP) (mm Hg) in 24 hours in response to a treatment, the following data were obtained from 11 individuals.
What is the bound on the error of estimation (or margin of error) for the 95% confidence interval for the population mean income?
Lodging Cost. A travel association claims that the mean daily lodging cost for two adults traveling together on vacation in San Francisco is at least $240. A random sample of 24 such groups of adults has a mean daily lodging cost of $233 and a sta..
Determine whether the evaluated group is a population or a sample.
Can researcher conclude that humidity has significant effect on eating behavior? Use a two-tail test with α = .05. Calculate estimated Cohen's d and r2 to measure size of treatment effect.
a university dean is interested in determining the proportion of students who receive some sort of financial aid.
Is there any evidence to suggest that the proportion of adults in this area who hear the Hum has changed? Use a = 0.05 and use the p value associated with this hypothesis test to draw a conclusion.
Ayayai Corp. issued 1,000 5%, 5-year, $1,000 bonds dated January 1, 2017, at face value. Interest is paid each January 1.
Derive and expression for the probability that an incident electromagnetic wave A→(r→ t) = Ao→cos(k→.r→ - ωt) pops the particle out of the potential well.
The spot rate in six months is E1 for $1.40. What will be the net amount the firm will receive from the put options (put payoff minus premium)?
It is important to conduct research on the culture of the country that an organization intends to enter. Understanding these areas allows an organization.
construct an 80 confidence interval to estimate the population mean when x 125 and s 32 for the following sample
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