Skip to content
MathsGenie logo
Quick links
Open app

Course home

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

4.6 Statistical hypothesis testing (A-level only)

MediumHard
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192
Question 65
46%

Andy plays tennis. The probability that Andy will get one of his serves in court is 60%.

ai.

Andy serves 20 times. Find the probability Andy gets exactly 15 serves in court.

[1]
aii.

Andy serves 20 times. Find the probability more than 15 of the serves will be in court.

[2]
b.

Andy's coach thinks that the probability of Andy getting a serve in court has changed. Andy serves 50 times in a set and 35 are in court. Stating your hypothesis clearly, test the coach's claim at the 10% significance level.

[4]

4.6 Statistical hypothesis testing (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.6 Statistical hypothesis testing (A-level only)