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 19:00
You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?
Answers: 1
Mathematics, 21.06.2019 20:00
Ke’ajah has a coupon for 1/3 off the regular price, t, of a tent. which expression represents the price of the tent using the coupon? select the two correct expressions. a. 1/3t b. 2/3t c. t - 1/3 d. t - 2/3 e. t - 1/3t f. t - 2/3t
Answers: 1
Mathematics, 21.06.2019 20:30
Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints
Answers: 1
Astudy is done by a community group in two neighboring colleges to determine which one graduates stu...
Mathematics, 15.01.2020 23:31
English, 15.01.2020 23:31