1. A test is made of H:P = 20 VS H:U 20 and the Z value = -2.70, compute the PValue and interpret your results, must show work, formulas, diagram etc for full grades. %3!

The mean height for a population of people is 65 inches. Suppose that you pick a sample of 50 people and determine the sample mean, x. You then repeat this procedure three more times. You learned in class that µx = µ. Can you conclude that the mean of the four sample means will be equal to the population mean, 65. Why or why not?

John calculated r -.44 for a set of n 10 pairs of values that represent the number of absences from class (X) and students midterm exam scores (Y). How much of the variability in exam scores can be predicted from the relationship with the number of absences?

Mean: 150 A B Median: 162 с Mode: 163 After the measurements were recorded, the team saw that the tool was bro- ken. It had not been calibrated (set up) correctly and each measurement (data value) in the set should actually be 3.75 feet greater than the recorded width. How will adding 3.75 to each data point change the 5 Measures above? Range: 60 IQR: 35 The Mean, Median and Mode need to add 3.75. The Range and IQR stay the same. Each data point AND each of the 5 measures need to add 3.75. Only the Range and the IQR need to add 3.75. All other numbers stay the same.

Please also tell if any tables were used which ones they are

tly sunny A researcher studying stress is interested in the blood pressure measurements of chief executive officers (CEOS) of major corporations. He has good reason to believe that the mean systolic blood pressure, u, of CEOs of major corporations is more than 132 mm Hg, which is the value reported in a possibly outdated journal article. He plans to perform a statistical test. He measures the systolic blood pressures of a random sample of CEOs of major corporations and finds the mean of the sample to be 142 mm Hg and the standard deviation of the sample to be 18 mm Hg. Based on this information, complete the parts below. 144Hz (a) What are the null hypothesis Ho and the alternative hypothesis H, that should be used for the test? 0 Ho : u = 132 H₁ H32 (b) Suppose that the researcher decides not to reject the null hypothesis. What sort of error might he be making? (Choose one) ▼ (c) Tume TH Suppose the true mean systolic blood pressure of CEOs of major corporations is 146 mm Hg. Fill in…

 the average (mean) score on an exam was 76.52 in a class consisting of 14 supply chain students and 11 HR students. If the 14 supply chain students averaged 84, what was the average score of the 11 HR students? 

What value should go in the overlap of the two circles? (that's where the 'X' is). Explain your reasoning

Which equation is the best fit for the data in the table? X Y 3 12 5 27 8 48 11 O y=-.0026x^2+.33x+1.16 O y=1.94x+2.140 O y=1.732vx-1 O y=1.732x-1

Supposed that you were asked to examine the relationship between the height of children and their parents. To conduct such a study, you have collected data from 110 college students, and estimated the following relationship: Studenth_hat=19.6 + 0.73 × Midparh, R2 = 0.45, SER = 2.0 (7.2) (0.10) where Studenth is the height of students in inches, and Midparh is the average of the parental heights. Values in parentheses are heteroskedasticity robust standard errors. Both variables were adjusted so that the average female height was equal to the average male height.) If children, on average, were expected to be of the same height as their parents, then this would imply two hypotheses, one for the slope and one for the intercept. We reject the null hypothesis for the slope at 1% and we reject the null hypothesis for the intercept at 5%. We do not reject the null hypothesis for the slope at 1% and we reject the null hypothesis for the intercept at 5%. We reject the null hypothesis for the…