Question

QUES: A wholesaler of automobile tyres wishes to test the average wearing quality of a
domestically produced tyre X1 and imported tyre X2. Under local conditions, 60 of each
are selected and following results are obtained:
Xlbar=30.9, X2bar=28.5
S1=6, s2=6.3
Is there a significant difference between the two sample means at 5% LOS?

Answer 1

Answer:

25 %

Explanation:

is the answer of this question