All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions.

Let X denote the mass of pineapple tarts and denote the population mean mass of pineapple tarts.

Unbiased estimate of population mean = 0.8825

(3 SF)

Under

Test Statistic, at 10% level of significance.

Using GC, p-value

, do not reject

There is insufficient evidence at 10% significance level to reject the stall owner’s claim.

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