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Assume a Poisson distribution.
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Chapter 5 Solutions
EP BASIC BUS.STATS-ACCESS (18 WEEKS)
- = 11.1.★ Compute the Poisson distribution P(v) for µ Plot a bar histogram of Pos(v) against v. 0.5 and v= 0, 1, . . . , 6.arrow_forward4. Use the t-distribution to find t. values such that following statements are true. a. = 0.95, where df= 16 b. = 0.90, where df= 16 с. = 0.99, where df= 12 d.arrow_forwardTF.7 The number of customers visitings a post office during a 5-minute period has Poisson distribution with μ = 4. Use the Poisson table to find the probability that... a) more than 3 customers will visit during a 5-minute period. b) between 6 and 12 customers, inclusive, will visit during a 10-minute period.arrow_forwardThe mean of the Poisson distribution is 2.25. Find the other constants of the distribu- tion.arrow_forwardSuppose x has the B(20, 0.5) distribution. Fint the P(x>10).arrow_forward3.6 Triathlon times, Part Il: The distribution for triathlon time varies depending on the population you are describing. The distribution for men ages 30 - 34 is N(u=4304, o=581). The distribution for women ages 25 - 29 is N(u=5225, o=848). Note, these distributions list the triathlon times in seconds. Use this information to compute each of the following. Report your answer to 2 decimal places. a) The cutoff time for the fastest 5% of athletes in the men's group, i.e. those who took the shortest 5% of time to finish. b) The cutoff time for the slowest 10% of athletes in the women's group.arrow_forwardAn urn has 6 balls numbered 1 through 6. Select 3 balls (at once). Let X denote the largest value selected. (For example, if ball numbered 2,3 and 5 were selected, then X = 5.) a. Find the distribution table for X. b. Evaluate E(X) and V(X). c. Let Y2X 3. Determine E(Y) and V (Y).arrow_forwardThe average American gets a haircut every 42 days. Is the average smaller for college students? The data below shows the results of a survey of 15 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal.40, 37, 42, 46, 46, 28, 31, 39, 44, 31, 45, 39, 41, 42, 48What can be concluded at the the α= 0.05 level of significance level of significance? a. The test statistic= (please show your answer to 3 decimal places.) b. The p-value = (Please show your answer to 3 decimal places. c. Based on this, we should the null hypothesis. Thus, the final conclusion is that ... a.The data suggest the populaton mean is significantly lower than 42 at α= 0.05, so there is sufficient evidence to conclude that the population mean number of days between haircuts for college students is lower than 42. b.The data suggest the population mean number of days between haircuts for college students is not significantly lower than 42 at α= 0.05, so…arrow_forwardThe Harbor Island Ferry leaves on the hour and at 15-minute intervals. The time, x, it takes John to drive from his house to the ferry has a uniform distribution with x between 10 and 20 minutes. One morning John leaves his house at precisely 8:00a.m O a. 0.5 O b. 0.3 O c. none of the above O d. 1 O e. 0.7arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill