Skip to content

Course home

Sign up

2.5 Data presentation and interpretation

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146
Question 34

A random sample of 25 coastal days gives r=0.382r=0.382r=0.382 between wind speed and wave height. For the test H0:ρ=0H_0:\rho=0H0​:ρ=0 against H1:ρ>0H_1:\rho>0H1​:ρ>0, software gives a p-value of 0.0295.

a.

Complete the test at the 5% significance level.

[3]
b.

State what would happen at the 2% significance level.

[2]
Markscheme

2.5 Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.5 Data presentation and interpretation

278 exam-style questions on CCEA A Level Maths 2.5 Data presentation and interpretation, covering 2.5.1 Data presentation and interpretation, 2.5.2 Data presentation and interpretation, 2.5.3 Data presentation and interpretation, 2.5.4 Data presentation and interpretation, 2.5.5 Data presentation and interpretation, 2.5.6 Data presentation and interpretation, 2.5.7 Data presentation and interpretation, 2.5.8 Data presentation and interpretation, 2.5.9 Data presentation and interpretation, and 2.5 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank