Mathematics, 03.01.2020 00:31 einstein101
Consider the one-sided situation in problem 1: an advertisement for a word-processing class claims that students who complete the class will, on average, be able to type 60 words per minute (wpm) with a standard deviation of 6 wpm. we're concerned that students aren't performing as well as advertised. at the end of the class we test 49 students and conduct a one-sided hypothesis test at the .05 level of significance. this means that the hypothesis will be rejected if the mean wpm is less than 58.6. suppose, in reality, the true mean for graduates is 58 wpm with a standard deviation of 5 wpm.
what's the power of the test if the true population mean is 58 wpm? draw a diagram of the sampling distribution for the sample mean, showing the area that represents the power of the test and the area that represents the probability of a type ii error.
Answers: 2
Mathematics, 21.06.2019 16:30, marbuscis99
Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.
Answers: 1
Mathematics, 21.06.2019 16:30, hector87
The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257
Answers: 2
Mathematics, 21.06.2019 22:00, foreverrocky12p2asun
Consider the triangle. which shows the order of the angles from smallest to largest? angle a, angle b, angle c angle b, angle a, angle c angle b, angle c, angle a angle c, angle a, angle b
Answers: 3
Consider the one-sided situation in problem 1: an advertisement for a word-processing class claims...
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