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Write a brief note to describe the following graphs including its useful to a particular variable or data.
a) Bar graph
b) Pie chart
c) Stem plot
d) Histogram
e) Time plot
f) Box plot
g) Side-by-side bar graph
h) Scatterplot
A quality control analyst wants to examine thermometers that give readings in the bottom 4%. Find the reading that separates the bottom 4% from the others.
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance.
Determine whether the method of delivering teaching influences adherence with antiretroviral therapy.
Steve Goodman, production foreman for the Florida Gold Fruit Company, estimates that the average sale of oranges is 4,700 and the standard deviation is 500 oranges. Sales follow a normal distribution.
what is the sample space of all possible outcomes? Are the outcomes equally likely?
The average credit card debt for college seniors is $3,262. If the debt is normally distributed with a standard deviation of $400, find probabilities. that the senior owes at least $1,000
At the .05 significance level, can we conclude that there is a difference in their mean times?
bcs quality assurance programme chooses a random sample of 50 units and finds that 12 are defective. what is the number
Compute the standard error of the proportion and calculate the z-statistic. What is the probability of obtaining this value of the z-statistic if the null hypothesis is true?
Can one conclude at a level of significance of .01 that the new ball has improved his game?
Plot the data, fit a trend line, and discuss the strength of prediction of the regression model.
A test on zoology is to be given next week. Suppose 75 percent of the students study for the test and 25 percent do not. If a student studies for the exam, the probability that he or she will pass is 0.90. If the student does not study, the pro..
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