You can calculate the P-value for a chi-square test using technology. After calculating the standardized test statistic, use the cumulative distribution function (CDF) to calculate the area under the curve, Use the P-value method to test the claim. A hospital spokesperson claims that the standard deviation of the waiting times experienced by patients in its minor emergency department is no more than 0.5 minutes. A random sample of 23 waiting times has a standard deviation of 0.7 minutes. At a = 0.05, is there enough evidence to reject the spokesperson's claim? Identify the null and alternative hypotheses. OA. Ho: os0.5 O B. Ho: o<0.5 H:o>0.5 Haio20.5 OC. Ho: o20.5 O D. Ho:o>0.5 Hio<0.5 Haios0.5 Identify the standardized test statistic. y2 = (Round to two decimal places as needed.) Identify the P-value. P= (Round to four decimal places as needed.) Choose the correct conclusion below. O A. Reject Ho. There is not enough evidence at the 5% level of significance to reject the spokesperson's claim. O B. Reject Ho. There is enough evidence at the 5% level of significance to reject the spokesperson's claim. OC. Fail to reject Ho. There is not enough evidence at the 5% level of significance to reject the spokesperson's claim. OD. Falil to reject Ho. There is enough evidence at the 5% level of significance to reject the spokesperson's claim.

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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.