Mathematics, 18.12.2020 14:00 QueenNerdy889
Help me choose the correct null hypothesis PLEASE.
The designers of the problem-solving course wish to investigate whether there is a significant improvement in maths scores, at a 5% significance level, subsequent to taking the course. Select the correct null hypothesis, where:
μTC denotes the mean score of those who took the course;
μNC denotes the mean score of those who did not take the course;
μD denotes the difference in means between two related samples.
Di = XTCi - XNCi (and XTCi denotes the score of the ith student who took the course).
Select one:
μTC - μNC = 0
μTC - μNC ≠ 0
μTC - μNC > 0
μTC - μNC 0
μD 0
πTC - πNC 0
σTC - σNC < 0
σTC - σNC ≥ 0
σTC - σNC ≤ 0
Answers: 1
Mathematics, 21.06.2019 22:00, 1xXJOKERXx3
Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x
Answers: 3
Help me choose the correct null hypothesis PLEASE.
The designers of the problem-solving course wish...
Mathematics, 02.03.2021 04:00