Recall that DS 6.1.7 shows the weights of a sample of paving slabs from a certain company,

Question:

Recall that DS 6.1.7 shows the weights of a sample of paving slabs from a certain company, manufacturer A say. In addition. DS 9.3.1 shows the weights of a sample of paving slabs from another company, manufacturer B. Is there evidence of any difference in the paving slab weights between the two manufacturers?