Mathematics, 18.11.2019 19:31 lovelyheart5337
Astudy is done by a community group in two neighboring colleges to determine which one graduates students with more math classes. college a samples 11 graduates. their average is 4 math classes with a standard deviation of 1.5 math classes. college b samples 9 graduates. their average is 3.5 math classes with a standard deviation of 1 math class. the community group believes that a student who graduates from college a has taken more math classes, on the average. both populations have a normal distribution. test at a 1% significance level. answer the following questions. a. is this a test of two means or two proportions? are the populations dependent or independent? b. are the populations' standard deviations known or not? c. which distribution is to be used? d. what is random variable? e. hypothesis? f. test is two tailed or one tail? g. test value h. use p-value method) to reach to the conclusion?
Answers: 3
Mathematics, 21.06.2019 21:30
Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers
Answers: 1
Mathematics, 22.06.2019 00:10
Use your knowledge of the binary number system to write each binary number as a decimal number. a) 1001 base 2= base 10 b) 1101 base 2 = base 10
Answers: 1
Mathematics, 22.06.2019 01:00
XΒ² + 4yΒ² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis
Answers: 3
Astudy is done by a community group in two neighboring colleges to determine which one graduates stu...
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