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    Love2008

    Can You Verify The Departments Claim That The Mean Exceeds Rupees 2500 At The Level With This Information?

    A Random Sample Of 100 Workers With Children In Day Care Shows A Mean Day-care Cost Of Rupees 2600 And A Standard Deviation Of Rupees 500.

    asked 4 months ago

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    1 Answer


    anukhan

    1)     
    Null and alternative hypothesis:

    Ho:U>2500

    H1:U < 2500

    2)     
    Level of significance: 0.05

    3)     
    Test statistics:

    Z=(sample mean – population mean)/ standard
    deviation/square root of sample size

    4)     
    Calculation:

    Z=2

    5)     
    Critical region:

    At significance level=0.05  -1.645
    6)     
    Ho ejected because 2 lie in critical
    region.

    answered 4 months ago   

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