The South African Revenue Service (SARS) believes that it takes typical salary-earning taxpayers less than 45 minutes, on average, to complete their tax returns using eFiling. The time taken to complete the eFiling process for a random sample of seven salary-earning taxpayers was recorded and the results are as follows: 42 50 35 39 29 53 51 Test at a 10% level of significance whether SARS’ claim is likely to be true.

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