lood pressure levels are normally distributed for the population of patients both before and after taki Patient 4 7 Blood pressure (before 195 185 179 195 184196 149 200 164 Blood pressure (after) 178 66 160 171 170 182 143 175 156 null and alternative hypotheses for the test. E Tables 25
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
A pharmcuticle company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of Mercury) for 9 patients before taking the new drug and 2 hours after taking the drug are shown in the table below. is there enough evidence support the company's claim?
Let D =(blood pressure before taking new drug)- (blood pressure after taking new drug).use significant levels of a=their 0.05 for the test. Assume that the systolic blood pressure levels are
1.State the null and alternative hypothesis for the test.
2. Find the value of the standard deviation of the paired differences. Round to one decimal place.
3.compute the value of the test statistic. Round to three decimal places
4.determine the decision rule for rejecting the null hypothesis Ho. Round the numerical portion to three decimals.
5.make decision for the hypothesis test.
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