Fail to reject ho conclusion there is not sufficient

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Fail to Reject Ho. Conclusion: There is not sufficient sample evidence to support that the average weight of male German Shepherds is more than the average weight of male Doberman Pinchers. 4. Population 1: mom’s height Population 2: daughters height The problem does meet the assumptions to create a confidence interval. Both data sets were random. Both data sets were too small (n1=20 and n2=20). To check if they were normally distributed, we created histograms of each. The histogram for the mom was bell shaped and the histogram for the daughters was more uniform but not radically skewed. So both data sets meet the “nearly normal” assumption.

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Th e data sets are definitely matched pairs. Mom’s and daughters are related to each other genetically and will probably play a role in their heights. 0 : 0 : 0 d A d H H Test Stat t = -1.519 This means that on average, the heights of moms were 1.519 standard errors below their daughters. There was a difference between moms and daughters, but it may not be significant enough. P-value = 0.0726 This means that if the null hypothesis is true and moms and daughters have the same height, then there was only a 7.26% chance of getting this sample data or more extreme. It was unlikely that this happened by random chance, however this data may not be significant enough evidence. Fail to Reject Ho. Conclusion: There is not sufficient sample evidence to support that the mothers are shorter than their daughters on average. 5. Ho: p1=p2=p3=p4=p5=p6 (claim) Ha: at least one is not equal Assumptions: All Expected values = 20 > 5. Data was also random. So passes all the assumptions Chi-squared test stat = 35.8 (Sig difference between the observed sample data and the expected values from Ho)
Pvalue < 0.0001 Unlikely to happen by random chance. P-value < sig level Reject Ho There is significant sample evidence to reject the claim that the various sports have the same percentage of knee injuries. 6. Ho: The distributions for the groups are the same (claim) Ha: The distributions are different Assumptions: All Expected values = 20 > 5. Data was also random. So passes all the assumptions Chi-squared test stat = 3.467 (Not Sig difference between the observed sample data and the expected values from Ho) Pvalue = 0.1767 Likely to happen by random chance. P-value > sig level Fail to Reject Ho There is NOT significant sample evidence to reject the claim that the various animals have the same distributions of rabies. 7. Ho: Age and music are independent (not related) Ha: Age and music are dependent (related) CLAIM Assumptions: All Expected values = 20 > 5. Data was also random. So passes all the assumptions Chi-squared test stat = 25.635 (Sig difference between the observed sample data and the expected values from Ho) Pvalue = 0.0003 Unlikely to happen by random chance. P-value < sig level

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Reject Ho There is significant sample evidence to support the claim that age and favorite type of music are related.
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• Fall '17
• Statistics, Statistical hypothesis testing, significant sample evidence

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