Question: Is it normal Is it reasonable to treat the following
Is it normal? Is it reasonable to treat the following sample as though it comes from an approximately normal population? Explain.
Answer to relevant QuestionsFind the z-score: Find the zscore for which the area to its right is 0.89. Pay your taxes: Among all the state income tax forms filed in a particular state, the mean income tax paid was p = $2000 and the standard deviation was a = $500. As part of a study of the impact of a new tax law, a sample of ...Compute the sample mean it and the sample standard deviation s. Testing math skills: In order to test the effectiveness of a program to improve mathematical skills, a simple random sample of 45 fifth- graders was chosen to participate in the program. The students were given an exam at ...A sample of eight repair records for a certain fiber- optic component was drawn, and the with the following results: 30 35 19 23 27 22 26 16 a. Construct a dotplot for these data. Are the assumptions for constructing a ...
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