A researcher conducts a hypothesis test to evaluate the effect of a treatment that is expected to increase scores. The hypothesis test produces a z-score of z = 2.27. If the researcher is using a one-tailed test, what is the correct statistical decision?

You think that there might be a relationship between stress for Middle Schoolers and the number of after-school activities that the student participates in. Conduct an ANOVA with an 8-step hypothesis on the following data to find if there if there is a significant relationship occurring. # of after school activities Stress Scores 0 1 0 2 0 8 1-2 3 1-2 10 1-2 4 1-2 2 1-2 6 3 or more 9 3 or more 8 3 or more 3

You are conducting a study to see if the proportion of men over 50 who regularly have their 0.01 prostate examined is significantly different from 0.52. You use a significance level of a Ho:p 0.52 H p0.52 You obtain a sample of size n = 715 in which there are 378 successes. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) a Ogreater thana This p-value leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate examined is different from 0.52. There is not sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate examined is different from 0.52. The sample data support the claim that the proportion of men over 50 who regularly have their…

You are conducting a study to see if the probability of catching the flu this year is significantly different from 0.89. You use a significance level of α=0.005α=0.005.      H0:p=0.89H0:p=0.89      H1:p≠0.89H1:p≠0.89You obtain a sample of size n=213n=213 in which there are 204 successes.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value =