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Researchers want to measure the effect of alcohol on the development of the hippocampal region in adolescents. The researchers randomly selected 11 adolescents with alcohol use disorders. They wanted to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm 3 (cube). An analysis of the sample data revealed that the hippocampal volume is approximately normal with X- (this should be x with a line over it) = 8.18 and s = 0.8. Conduct an appropriate test at the a= 0.05 level of significance.
Find the test statistic (round to 2 decimals places as needed)
T=
Find the P-value (round to 2 decimals places as needed)
P value is
a negative relationship between two variables means that as the x variable increases the y variable
A researcher decides to test her hypothesis that some toys are more fun to play with than others, so she decides to compare fun toys or blocks with “un-fun” toys or stuffed animals
What do you plan to do with all of the T-shirts you collect in your college years? Store them in a box somewhere? Wear them for the next 30 years? Give them away? Leigh Lowe of Louisville, Kentucky, has a different alternative for you-make a quilt..
Write out the ANOVA table just showing Sources of Variability and degrees of Freedom and indicate which SV are fixed effects and which are random.
Critically the difference between Paramaeter and Statistics and Critically discuss the concept of operationalize? What are focus groups
GB Flash Memory Card After scanning the UPC code of a 4 GB flash memory card using his smartphone, Michael Sullivan received the following prices for the goods at a variety of online retailers. What happens to the interval as the level of confidenc..
a. one set of 20 pairs of scores x and y values produces a correlation of r0.70. if ssy 150 find the standard error of
in china the probability of a baby being a boy is 0.5845. couples are allowed to have only one child. if relatives give
an insurance company receives an average of 100 claims per month and each claim results in a payment independently of
Which combination of factors has greatest likelihood of rejecting null hypothesis?
The accompanying data refers to concentration of the radioactive isotope strontium-90 in milk samples obtained from five randomly selected dairies in each of four different regions.
Where does the p-value come from for the spatial scan statistic used in SaTScan? How Monte Carlo simulation is used to derive a p-value for a cluster ?
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