Question

59pm This Question: 1 pt 21 of 25 (0 complete) This Test: 25 pts possible 1/03/19 1:59pm B/03/19 1:59pm The accompanying table describes the random variablex, the numbers of adults in groups of five who reported sleepwalking Complete parts (a) through (4) below Click the icon to view the table 8/03/19 1:59pm 8/03/19 11:59pm a. Find the probability of getting exactly 4 sleepwalkers among 5 adults (Type an integer or a decimal Do not round) b. Find the probability of getting 4 or more sleepwalkers among 5 adults (Type an integer or a decimal. Do not round) c. Which probability is relevant for determining whether 4 is a significantly high number of sleepwalkers among 5 adults the result from part(a) or part (b)? 08/03/19 11:59pm 08/03/19 11:59pm O O O O A. Since the probability of getting 5 sleepwalkers includes getting 4 sleepwalkers, the result from part(b) is the relevant probability B. Since the probability of getting fewer than 4 sleepwalkers is the complement of the result from part this is the relevant probably C. Since the probability of getting 5 sleepwalkers is less likely than getting 4 sleepwalkers, the result from part(a) is the relevant probability D. Since the probability of getting 4 sleepwalkers is the result from part(a), this is the relevant probability d. Is 4 a significantly high number of 4 sleepwalkers among 5 adults? Why or why not? Use 0.05 as the threshold for a significant event 07/09/19 11:59pm 07/15/19 11:59pm O A No, since the appropriate probability is greater than 0.05, it is not a significantly high number O B. Yes, since the appropriate probability is less than 0.05, is a significantly high number OC. No, since the appropriate probability is less than 0.05, it is not a significantly humber O D. Yes, since the appropriate probability is greater than 0.05, is a significantly high number 07/29/19 11:59pm 08/04/19 11:59pm Click to select your answers) STA202) Blended) - Shakut) is based on Broward College STA2023

Answer 1

$\dpi{100} \huge {\color{Red} Solutions:-}$

(a):-.Probability of getting exactly 4 seepwalkers among 5 adult =

P(X = 4) = 0.027

(b):- Probability of getting 4 or more seepwalkers among 5 adult=

P(X >= 4) = P(4) + P(5) = 0.027 + 0.03 = 0.030

(c):-. Option (D):-. Since the probability of getting 5 sleepwalkers includes getting 4 sleepwalkers, the result from part (b) is the relevant probability.

(d):-.Option (B):-. Yes, since the appropriate probability is less than 0.05, it is a significantly high number.