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!

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blood pressure, u, of CEOs of major corporations is more than 132 mm Hg, which is the value reported in a possibly outdated journal article.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…

Blood pressure is 127.58 sample of 41 males,, 35-44 in age.. blood pressure of 5.76. Find 95% co fidence interval

Historically, the proportion of students entering a university who finished in 4 years or less was 62%. To test whether this proportion has decreased, 113 students were examined and 45% had finished in 4 years or less. To determine whether the proportion of students who finish in 4 year or less has statistically significantly decreased (at the 5% level of signficance), what is the test statistic? (please round your answer to 2 decimal places)

Where do p-values concentrate?

Find the value of the test statistic. Round to 3 decimal places. • Claim: The mean amount of time an individual spends completing tax forms is 7.9 hours. • Data: x = 8.3 hr, s = 2.1 hr, n = 145 %3D %3D %3D 2.019 2.294 O 2.348 -2.443 None of these « Previous

What is the decision rule for the t-test that the mean child mortality rate for countries in Eastern Europe is more than the mean child mortality rate for countriesin the Middle East?

Suppose that the mean score of a class of 29 students was 78. The 16 male students in the class had mean score of 66. What was the mean score for the 13 female students? Mean Score for Female Students = previ

Ginny’s professors conspired to all give a test on the same day. She gets an 82 on her psychology exam with μ = 76 and σ = 12. She receives a z-score of -.25 on her management exam. Finally, she scored at the 50th percentile on her normally distributed math exam. Place her test scores in order from lowest to highest score.

10. Is the height of a building, measured in feet, related to the number of stories the building has? Data was gathered from a random sample of 60 tall buildings in the United States, and this data is presented in the scatterplot below. The correlation between height and number of stories was observed to ber= 0.89, and the equation to predict height based on number of stories is given below. Predicted height = 129.8 + 10.10 (stories) Based on this information, which one of the following statements is correct? 1200 1000 R00 400 60 80 90 stories A. If we removed from the analysis the building with 81 stories and a height of 500 feet, the correlation would get stronger. B. It would be extrapolation to use the regression equation to predict the height of a building with 100 stories. C. A building with 0 stories would be predicted to have a height of 10.10 feet. D. If we decided we wanted to predict number of stories based on the height of the building, the regression equation would be:…