Mathematics, 30.03.2021 23:10, Jakyramason
An SRS of 400 high school seniors gained an average of ¯=21 points in their second attempt at the SAT Mathematics exam. Assume that the change in score has a Normal distribution with standard deviation =48. You can find the critical values to three decimal places by using the last row in table C. (a) Find a 95% confidence interval for the mean change in score in the population of all high school seniors. (Enter your answers rounded to two decimal places.)
Answers: 1
Mathematics, 21.06.2019 16:10, lilyplant4289
The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.
Answers: 1
Mathematics, 21.06.2019 16:30, bangtann77
Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why
Answers: 1
An SRS of 400 high school seniors gained an average of ¯=21 points in their second attempt at the SA...
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