Skip to content

Course home

2.5 O: Statistical hypothesis testing

2.5 O: Statistical hypothesis testing

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105
Question 95

The owner of a bakery claims that the mean weight of their sourdough loaves is 500 g. A random sample of 64 loaves is taken, and their weights have a mean of 494.5 g and a standard deviation, sss, of 22 g.

a.

Stating your hypotheses clearly and using a 5% level of significance, test whether or not the owner's claim is supported by the data.

[5]
b.

Explain the relevance of the Central Limit Theorem to your calculation in part (a).

[1]
c.

State an additional assumption regarding the standard deviation that was made to carry out the test in part (a).

[1]
Markscheme

2.5 O: Statistical hypothesis testing Questions

  1. A Level
  2. /Maths
  3. /2.5 O: Statistical hypothesis testing

162 exam-style questions on AQA A Level Maths 2.5 O: Statistical hypothesis testing, covering 2.5.1 Language of hypothesis testing, 2.5.2 Hypothesis test for a binomial proportion, and 2.5.3 Hypothesis test for a Normal mean (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

Question bank