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Indicate which of the following represent a variable and which a constant:a. The number of letters in the alphabet
b. The number of hours in a day
c. The time at which you eat dinner
d. The number of students who major in psychology at your university each year
e. The number of centimeters in a meter
f. The amount of sleep you get each night
g. The amount you weigh
h. The volume of a liter
What is the probability that the sample proportion is less than 0.5? What is the upper limit of the sample proportion such that only 3%of the time the sample proportion would exceed this value
Do the data indicate a significant difference? Test with ∝ = .05.
The One-Way ANOVA applet lets you see how the F statistic and the P-value depend on the variability of the data within groups and the differences among the means. The black dots are at the means of the three groups. Move these up and down until..
Use the value of the line correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation? Calculate the coefficien..
Wwith a standard deviation of 1.7 grams. Assuming the distribution of weights is normally distributed, 4% of whooping crane eggs weigh less than how many grams?
Suppose we are considering the selection of the reorder point, R, of a (Q, R) inventory policy. With this policy, we order up to Q when the inventory level falls to R or less. The probability distribution of daily demand is given in Table.
Explain how you obtained a suitable sample of either qualitative or quantitative data - Review data for validity and reliability.
A standard 6-sided die is weighted so that the probabilities of rolling 2,3,4,5 or 6 are equal and the probability of rolling 1 is three times the probability of rolling 2. If the die is thrown twice, what is the probability that the sum of the nu..
The Chartered Financial Analyst (CFA) institute reported that 51% of its U.S. members indicate that lack of ethical culture within financial firms has contributed the most to the lack of trust in the financial industry. (Source: Data extracted fr..
a machine manufactures parts whose diameters vary according to the normal distribution with the mean 40.150 mm and the
For this portion of the journal, you will create five journal entries, each addressing the prompts given below. Each entry will be one page in length, double spaced, with 12 point font (same directions as stage I). You need to keep with the creati..
Develop a hypothesis, label the independent and dependent variables, discuss what the experimental and control groups are doing in this study, and decide who (and how many) participants are needed. Be sure to discuss random sampling and random ass..
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