Suppose a national survey intends to identify the children experiencing physical bullying in a population of junior high school students in Texas. Out of a sample of 6,458, a total of 754 reported that they have experienced physical bullying. Calculate 95% confidence intervals for the proportion of the sample who have been bullied.

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).