A one-sample t-test was conducted to test whether King County had greater home values compared to...
A one-sample t-test was conducted to test whether King County had greater home values compared to the national average. Findings suggest that the $610,000 average home price in King County (SD=$123,610) is greater than the national average of $478,010, t(5,671)=2.45, p<.001."
Using this results section, answer the questions below.
1. What is a good research hypothesis for this results section?
There is no difference in housing costs between King County and the national average.
Housing costs in King County are less than the national average.
Housing costs in King County are greater than the national average.
Housing costs in King County are different than the national average.
2. Based on the results above, would you reject or accept the null hypothesis?
Reject
Accept
3. Why would you make the decision you made above (i.e. reject or accept the null hypothesis)?
the t-value is greater than 1.00
The p-value is less than 0.05
King County is obviously more expensive so we didn't even need to test it
The p-value is less than 0.05
4. Match the means and standard deviations for King County and the national housing prices.
King County Mean
[ Choose ] $123,610 $610,000 $478,010 Unknown
King County Standard Deviation
[ Choose ] $123,610 $610,000 $478,010 Unknown
National Mean
[ Choose ] $123,610 $610,000 $478,010 Unknown
National Standard Deviation
[ Choose ] $123,610 $610,000 $478,010 Unknown
Homework Answers
1. The good research hypothesis for this results section is,
Answer: There is no difference in housing costs between King County and the national average.
2. Based on the results, the null hypothesis is,
Answer: Reject
3. We make the decision to reject the null hypothesis because
Answer: The p-value is less than 0.05
4. King County Mean - $610,000
King County Standard Deviation - $123,610
National Mean - $478,010
National Standard Deviation - Unknown
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