Mathematics, 05.11.2019 03:31 jvsome8
Suppose that a committee is studying whether or not there is waste of time in our judicial system. it is interested in the mean amount of time individuals waste at the courthouse waiting to be called for jury duty. the committee randomly surveyed 81 people who recently served as jurors. the sample mean wait time was eight hours with a sample standard deviation of four hours.
a.
i. x¯= 8
ii. sx = 4
iii. n = 81
iv. n – 1 = 80
b. define the random variables x and x¯in words. x is amount of time individuals waste at the courthouse waiting to be called for jury duty. x- is mean amount of time that sample of 81 people who recently served at jurors.
c. which distribution should you use for this problem? explain your choice.
d. construct a 95% confidence interval for the population mean time wasted.
i. state the confidence interval.
ii. sketch the graph.
iii. calculate the error bound.
e. explain in a complete sentence what the confidence interval means.
Answers: 3
Mathematics, 21.06.2019 15:30, gui00g7888888888888
Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright
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Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10
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In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.
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