54 31 49 52 84 74 80 84 19 38 59 61 41 46 29 70 24 67 59 51 49 51 61 40 63 69 51 63 46 26 18 78 85 53 79 56 69 65 33 29 36 38 55 39 58 34 72 40 49 38 27 77 31 25 63 53

The figures above (in thousands of dollars) are weekly expenditures of 56 households in a community.

1) What proportion of the households spend less than $38,000 a week?

2) If the weekly average expenditure of all households is $53,000 but an expert argues that the weekly expenditure is more than $53,000, test his claim at a 5% level of significance and interpret your results.