Question

In: Math

Does gender influence the satisfaction reported by library patrons? (a) " 18 women and 14 men...

Does gender influence the satisfaction reported by library patrons?

(a) " 18 women and 14 men reported that they were not satisfied with the library service.

(b) " 33 women and 20 men reported that they were satisfied.

(c) " 57 women and 85 men reported that they were very satisfied with the service.

Solutions

Expert Solution

Here, we can use the chi-square test of association and our hypothesis is,

H0: The gender and satisfaction level are independent.

Vs., H1: The gender and satisfaction level are not independent.

The observed frequencies are,

Women Men Total
not satisfied 18 14 32
Satisfied 33 20 53
very satisfied 57 85 142
Total 108 119 227

and expected frequency of a cell is given by, (row total* Column total)/ Grand total

And the table of expected frequency is,

Women Men Total
not satisfied 15.22 16.78 32
Satisfied 25.22 27.78 53
very satisfied 67.56 74.44 142
Total 108 119 227

and the test statistic is,

= 0.506+2.403+1.65+0.459+2.181+1.498=8.697

df=(r-1)(c-1)=2

th chi-square tabulated value at 0.05 level of significance is, 5.991.

Since our test statistic is greater than the tabulated value, we reject the null hypothesis.

There is enough evidence to conclude that gender influence the satisfaction reported by library patrons


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