P value associated with a t score of -3.10 and 24 degrees of freedom. I am struggling with utilising t score table and quite not understand df
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- HELP WITH C AND PLEASE EXPLAIN HOW TO DO IT.A teacher gives a reading skills test to a third-grade class of n = 25 at the beginning of the school year. To evaluate the changes that occur during the year, students are tested again at the end of the year. Their test scores showed an average improvement of MD = 12.7 points with s2 = 100. Which variables are described in this scenario and what are their scales of measurement? Which test should you use?Studies have shown that people who suffer sudden cardiac arrest have a better chance of survival if a defibrillator shock is administered very soon after cardiac arrest. How is survival rate related to the time between when cardiac arrest occurs and when the defibrillator shock is delivered? = survival rate (percent) and x = mean call-to-shock time (minutes) for a cardiac rehabilitation center (in which cardiac arrests occurred while victims were hospitalized The accompanying data give y and so the call-to-shock time tended to be short) and for four communities of different sizes. Mean call-to-shock time, x 2 6. 7 9. 12 Survival rate, y 91 46 32 4
- two tail test with Zcalc = -1.74. What is the p-value of the test?ACT scores range from 1 to 36 and are normally distributed where N (21.5, 5.4). SAT scores• range from 600 to 2400 and are normally distributed where N (1498, 316). Jorge scores 2090 on the SAT. If both tests measure the same thing, what score on the ACT is equivalent to Jorge's SAT score?After three exams Denny has a mean score of 74 with only one exam remaining in the class what is the minimum score she will need on that exam to have an overall of an 80
- Pls show work so I can understandHow do you calculate the upper quartile when you have missing data in the column age in the dataset df? a. quantile(df$age, .75) b. quartile(df$age, .75, na.rm=T) c. quartile(df$age, .75) d. quantile(df$age, .75, na.rm=T)Pls help me correctly and show excel for output of p value . A medical researcher is studying the effects of a drug on blood pressure. Subjects in the study have their blood pressure taken at the beginning of the study. After being on the medication for 4 weeks, their blood pressure is taken again. The change in blood pressure is recorded and used in doing the hypothesis test. Change: Final Blood Pressure - Initial Blood Pressure The researcher wants to know if there is evidence that the drug increases blood pressure. At the end of 4 weeks, 31 subjects in the study had an average change in blood pressure of 2.9 with a standard deviation of 5.3. Find the p-value for the hypothesis test.