Question: With higher unemployment rates for young adults an increasing number

With higher unemployment rates for young adults, an increasing number of parents are providing some form of financial support for their adult children. According to a 2013 Harris poll, parents of 18 to 35 year old children spend an average of $ 108 per month for their offspring’s phone, music, video and remote Web services. Assume the population standard deviation for this financial support is $ 33 per month. A random sample of 31 adults with 18 to 35 year old children was selected and was found to have an average of $ 91 per month for this type of financial support.
a. Does this sample provide support for the conclusions of the Harris poll?
b. Identify the symmetrical interval that includes 95% of the sample means if the true population mean is $ 108 per month.

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  • CreatedJuly 17, 2015
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