Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. A Level
  3. Maths OCR
  5. Question bank

2.5.7 Hypothesis test using Pearson's coefficient (A-level only)

Medium
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849
Question 40

Will sells cars. He thinks there is a positive correlation between the price of a car and its mileage.

He calculates the product moment correlation coefficient between these two variables for a random sample of 15 cars and obtains r=0.455r = 0.455r=0.455

Carry out a suitable test to investigate Will's belief at a 5% level of significance.

State clearly

  • your hypotheses
  • your critical value
[3]

2.5.7 Hypothesis test using Pearson's coefficient (A-level only) Questions

  1. A Level
  2. /Maths
  3. /2.5.7 Hypothesis test using Pearson's coefficient (A-level only)