A social worker was interested in determining whether there is a significance di

Question

A social worker was interested in determining whether there is a significance difference in the average monthly cost per child for childcare outside the home between state supported facilities and privately owned facilities. Two independent random samples yielded the following information:

State Supported Facilities
(population 1)

Privately Owned Facilities
(population 2)

64

64

705

675

95

80

Which Excel will calculate the test statistic?

=(705-675)/(SQRT(95/64+80/64))

=(705-675)/(SQRT(95^2/8+80^2/8))

=(705-675)/(SQRT(95/8+80/8))

=(705-675)/(SQRT(95^2/64+80^2/64))

State Supported Facilities
(population 1)

Privately Owned Facilities
(population 2)

64

64

705

675

95

80

Explanation / Answer

d.

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