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A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The figures for the CEOs were 32, 60, 48, and 36 square feet. (a) Figure the means and standard deviations for the governors and for the CEOs. (b) Explain, to a person who has never had a course in statistics, what you have done. (c) Note the ways in which the means and standard deviations differ, and speculate on the possible meaning of these differences, presuming that they are representative of U.S. governors and large corporations' CEOs in general.
If the research question were defined as will buyers purchase more of a product in a blue colored or silver package? the most appropriate type of research would be
In a clinical study of an allergy drug, 108 of the 203 subjects reported experiencing significant relief from their symptoms. Using a significance level of .01, test the claim that more than half of all those using the drug experienced relief.
If alpha level is changed from a = 0.05 to a = 0.01. What occurs to boundaries for critical region?
Using the critical value approach and the sample information reported below, carry out a test of this statement. Let α = 0.05.
Of the estimated natural gas reserves in North America, 4.59 *10^9 m ^3 are in United States. 2.66*10^9 m^3 are in Canada, and 1.99*10^9 m^3 are in Mexico.
Construct a 99% confidence interval for the mean time taken by all statistics students to solve the computer assignment.
Find the probability of getting at least 127 boys among 152 babies. Does the result suggest that the YSORT method is effective? Why or why not?
Could you please show me how you computed the two critical values to (2.18, 17.83) ? Which formula you used ?
What is the number of neurons n such that the probability of more than n neurons have higher firing rates for Condition 1is 0.99?
A group of workers on a manufacturing assembly line type information into a computer. They take a training class on how to use a computer, especially as related to data entry.
Find the confidence interval of the true proportion of students to receive a 3.0 GPA. Find the Z score, standard error, range, and your conclusion in a sentence.
To see if his belief is substantiated, conduct the test at a suitable significant level. State the assumptions made. see if his belief is substantiated, conduct the test at a suitable significant level. State the assumptions made.
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