![subject](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 20:40 kayolaaaa53
Ten randomly selected people took an iq test a, and next day they took a very similar iq test b. their scores are shown in the table below. person a b c d e f g h i j test a 106 99 95 92 87 127 115 100 77 108 test b 112 101 99 96 90 130 112 99 80 112 1. consider (test a - test b). use a 0.05 significance level to test the claim that people do better on the second test than they do on the first. (note: you may wish to use software.) (a) what test method should be used? a. two sample t b. two sample z c. matched pairs (b) the test statistic is (c) the critical value is (d) is there sufficient evidence to support the claim that people do better on the second test? a. yes b. no 2. construct a 95% confidence interval for the mean of the differences. again, use (test a - test b). < μ
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30
Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
Ten randomly selected people took an iq test a, and next day they took a very similar iq test b. the...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 01.04.2021 09:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 01.04.2021 09:10
![question](/tpl/images/cats/en.png)
English, 01.04.2021 09:10
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.04.2021 09:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.04.2021 09:10
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 01.04.2021 09:10
![question](/tpl/images/cats/en.png)
English, 01.04.2021 09:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.04.2021 09:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.04.2021 09:10
![question](/tpl/images/cats/en.png)
English, 01.04.2021 09:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.04.2021 09:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 01.04.2021 09:10
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 01.04.2021 09:10