Can you please help me with parts C, E, and F? Sales delay is the elapsed time between the manufacture of a product and its sale. According an article it is quite common for investigators to model sales delay using a lognormal distribution. For a particular product, thecited article proposes this distribution with parameter values μ = 2.08 and ² = 0.03 (here the unit for delay is months).USE SALT(a) What are the variance and standard deviation of delay time? (Round your answers to two decimal places.)variance2.01✓ months²standard deviation 1.42✓ months(b) What is the probability that delay time exceeds 12 months? (Round your answer to four decimal places.).0096(c) What is the probability that delay time is within one standard deviation of its mean value? (Round your answer to four decimal places.)0.8485X(d) What is the median of the delay time distribution? (Round your answer to two decimal places.)8.00months(e) What is the 99th percentile of the delay time distribution? (Round your answer to two decimal places.)months(f) Among 10 randomly selected such items, how many would you expect to have a delay time exceeding 8 months? (Round your answer to three decimal places.)itemsYou may need to use the appropriate table in the Appendix of Tables to answer this question.

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USE SALT are the variance and standard deviation of delay time? (Round your answers to two decimal places.) ce months² months rd deviation 2.01 1.42 s the probability that delay time exceeds 12 months? (Round your answer to four decimal places.) s the probability that delay time is within one standard deviation of its mean value? (Round your answer to four decimal places.) x s the median of the delay time distribution? (Round your answer to two decimal places.) months s the 99th percentile of the delay time distribution? (Round your answer to two decimal places.)

USE SALT are the variance and standard deviation of delay time? (Round your answers to two decimal places.) ce months² months rd deviation 2.01 1.42 s the probability that delay time exceeds 12 months? (Round your answer to four decimal places.) s the probability that delay time is within one standard deviation of its mean value? (Round your answer to four decimal places.) x s the median of the delay time distribution? (Round your answer to two decimal places.) months s the 99th percentile of the delay time distribution? (Round your answer to two decimal places.)

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Fifty-four wild bears were anesthetized, and then their weights and chest sizes were measured and listed in a data set. Correlation Results Results are shown in the accompanying display. Is there sufficient evidence to support the claim that there is a linear correlation between the weights of bears and their chest sizes? When measuring an anesthetized bear, is it easier to measure chest size than weight? If so, does it appear that a measured chest size can be used to predict the weight? Use a significance level of a =0.05. Correlation coeff, r: 0.966175 Critical r: ±0.2680855 P-value (two tailed): 0.000 Determine the null and alternative hypotheses. H1: p (Type integers or decimals. Do not round.) Identify the correlation coefficient, r. (Round to three decimal places as needed.) Identify the critical value(s). (Round to three decimal places as needed.) A. There is one critical value at r= O B. There are two critical values at r= + Is there sufficient evidence to support the claim…