Mathematics, 08.11.2019 00:31, Winzen07
Suppose the length, in words, of the essays written for a contest are normally distributed and have a known population standard deviation of 325 words and an unknown population mean. a random sample of 25 essays is taken and gives a sample mean of 1640 words. identify the parameters needed to calculate a confidence interval at the 98% confidence level. then find the confidence interval.
Answers: 2
Mathematics, 21.06.2019 12:30, erickamurillo9929
Asystem of equation is shown below 6x - 2y equals 3 . and 5x + 3y equals 4. would you solve by substitution or elimination? and why
Answers: 2
Mathematics, 21.06.2019 15:30, fooligan3448
The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?
Answers: 3
Mathematics, 21.06.2019 20:00, mercedespennewp72wea
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0
Answers: 2
Suppose the length, in words, of the essays written for a contest are normally distributed and have...
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