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1. A student is measuring assertiveness with an interval scale. Is it correct to say that a score of 30 on the scale represents half as much assertiveness as a score of 60? Explain.
2. For each of the following sets of scores, find
ΣNi=1 Xi;
a. 2, 4, 5, 7
b. 2.1, 3.2, 3.6, 5.0, 7.2
c. 11, 14, 18, 22, 25, 28, 30
d. 110, 112, 115, 120, 133
engineers want to design seats in commercial aircraft so that they are wide enought to fit 99 of all males. men have
Let A and B be two events such that P (A) = 0.6, P (B) = 0.4, P (AB) = 0.2. (a) What is the probability that neither of the two events occurs.
What is the probability that the person thinks that "Made in America" ads boost sales and uses social media online?
Calculate the expected value of this undertaking (make sure to take into account the thief's initial wealth).
an extensive survey of customers of three major cable companiesaband c found the followinga. company a will keep 71 of
a recent study of robberies for a certain geographic area showed an average of 1 robbery per 20000 people. in a city of
What quantity would you use for the lower limit of the initial class? Using your responses to parts (a), (b), and (c), create a frequency distribution. Identify the appearance of the frequency distribution.
Compute test statistic and p -value for each sample. (Negative amount must be pointed out by minus sign.)
Figure 20.3 shows CCW's average daily call volume for each quarter of the past three years, and column F of Fig. 20.4 gives the seasonally adjusted call volumes.
A busy professor has to complete N projects. Each project i has a deadline di and the time it takes the professor to complete it is Ti. The professor can work on only one project at a time and must complete it before moving on to a new project. F..
Taking samples of n=160, today the number of defective parts were 17 what would be a 95% confidence interval for proportion defective?
Suppose that you collect data on apartment prices in Tempe. You look at 41 different apartment and find a mean of 757 and a standard devaluation 156.7. Construct a 95% confidence interval for the mean apartment price. That interval is? Please show..
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