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Question: An instructor believes that 20 percent or less of the students who finish a statistics course get an "A" grade. A sample of 100 students was taken. 24 of the students in the sample received an 'A'. Test the instructor's claim at a five percent level of significance. Write your conclusion?
Hypothesis test for two differences between means
Find the validity of following argument form.
Find the probability distribution, & the cumulative probability distribution of car arrivals.
Find number of ways using permutation
The law of cosines and Pythagoras theorem.
I want to prove that a population mean is not 150. Use an alpha of 5 percent & set up the full, detailed, five step hypothesis test. Suppose when the sample 200 is taken the sample standard deviation is ten & the sample mean is 151.77.
Find the probability of making a Type II error.
FInd the probability that exactly 2 will be defective
Plot a histogram of the variable age. Include an appropriate title to your histogram. Explain the plot.
Prepare the equation of the rectangular hyperbola - Find the equation of the rectangular hyperbola
Find the prime of function
Sketching the graph of equation of line - Evaluate the equation of each of the lines with the given properties.
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