A hospital spokesperson claims that the standard deviation of the waiting times experienced by patients in its minor emergency department is no more than 0.8 minutes. A random sample of 22 waiting times has a standard deviation of minutes. At a =0.05, is there enough evidence to reject the spokesperson's claim? Assume the population is normally distributed. Complete parts (a) through (e) below. EA Click the icon to view the Chi-Square Distribution Table. (a) Write the claim mathematically and identify Ho and Ha. O A. Hoia s0.8 (Claim); Hio > 0.8 O B. Hoio 20.8; H,io<0.8 (Claim) OC. Hoia = 0.8; Ho 0.8 (Claim) O D. Hoio <0.8 (Claim); H, 20.8 (b) Find the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) Identify the rejection region(s). Choose the correct graph below. OB. Oc. OD. OA. (c) Find the standardized test statistic for the x-test. 2= (Round to three decimal nlaces As needed) Click to select your answer(s).
A hospital spokesperson claims that the standard deviation of the waiting times experienced by patients in its minor emergency department is no more than 0.8 minutes. A random sample of 22 waiting times has a standard deviation of minutes. At a =0.05, is there enough evidence to reject the spokesperson's claim? Assume the population is normally distributed. Complete parts (a) through (e) below. EA Click the icon to view the Chi-Square Distribution Table. (a) Write the claim mathematically and identify Ho and Ha. O A. Hoia s0.8 (Claim); Hio > 0.8 O B. Hoio 20.8; H,io<0.8 (Claim) OC. Hoia = 0.8; Ho 0.8 (Claim) O D. Hoio <0.8 (Claim); H, 20.8 (b) Find the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) Identify the rejection region(s). Choose the correct graph below. OB. Oc. OD. OA. (c) Find the standardized test statistic for the x-test. 2= (Round to three decimal nlaces As needed) Click to select your answer(s).
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Concept explainers
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.
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