A clinical trial is planned to compare an experimental medication designed to lower blood pressure to a placebo. Suppose that patients were recruited from 3 different clinical sites. Use the following data to test if hypertension and clinical site are independent. Run the test at a 5% level of significance. 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value.

Site 1

Site 2

Site 3

Hypertensive

10

14

12

Not Hypertensive

68

56

40

1) Null and alternative hypotheses:
The null and alternative hypotheses to test whether the hypertension and clinical site are independent are as follows:
H_{0}: The hypertension and clinical site are independent.
H_{a}: The hypertension and clinical site are not independent.
2) Appropriate test:
The appropriate test for the given scenario is chisquare test for independence.
3) Decision rule:
If pvalue ≤ significance level, reject the null hypothesis.
If pvalue ...
Q: using the z table (table e), find the critical value (or values) for each. a. alpha=0.10, two tailed...
A: a)It is given that level of significance is 0.10 and the test is two tailed.Here,
Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you bel...
A: Thus, it is given that the confidence level is 95%. Therefore, the significance level, α = 0.05.From...
Q: The following table shows the average life expectancy, in years, of a child born in the given year.†...
A: Stepbystep procedure to obtain the regression equation using MINITAB:Choose Stat > Regression &...
Q: 5. According to the 2010 US Census, the average number of residents per housingunit for the n=87 cou...
A: Note:Thank you for the question. We have solved the first 3 parts for you. If you need help with ano...
Q: Please show TI 84 steps
A: Standard normal distribution:The normal distribution with mean 0 and variance 1 is called standard n...
Q: You are estimating the mean size of farms in New Hampshire. You want your 95% CI to have a margin o...
A: The formula for the sample size is as follows:
Q: The drug Lipitor is meant to reduce cholesterol and LDL cholesterol. In clinical trials, 19 out of 8...
A: Hello there! there are more than three subparts in the question. According to our policies we cannot...
Q: Please show TI 84 steps.
A: The sample mean is calculated using TI84 calculator:Procedure to obtain sample mean and sample stan...
Q: Toby's Trucking Company determined that on an annual basis, the distance traveled per truck is norma...
A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...