The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d).O D. The variable "weekly time spent watching television" is likely symmetric, but not normally distributed.O E. The variable "weekly time spent watching television" is likely skewed left, not normally distributed.(b) According to a certain survey, adults spend 2.35 hours per day watching television on a weekday. Assume that the standard deviation for "time spent watching television on a weekday"is 1.93 hours. If a random sampie of 40 adultss obtained, describe the sampling distribution of x, the mean amount of time spent watching television on a weekday.V with Hand o =(Round to six decimal places as needed.)

Central Limit theorem L Suppose simple random sample of size ‘n’ is drawn from any population with…

Answered: (b) According to a certain survey,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A group of adult males has foot lengths with a mean of 28.07 cm and a standard deviation of 1.42 cm. Use the range rule of thumb for identifying significant values to identify the limits separating values that are significantly low or significantly high. Is the adult male foot length of 25.0 cm significantly low or significantly high? Explain. Significantly low values are cm or lower. (Type an integer or a decimal. Do not round.)
Based on data from a college, scores on a certain test are normally distributed with a mean of 1545 and a standard deviation of 318. c. Find the percentage of scores between 1291 and 1609. whats the pecentage % (Round to two decimal places as needed.)
The average production cost for major movies is 57 million dollars and the standard deviation is 23 million dollars. Assume the production cost distribution is normal. Suppose that 17 randomly selected major movies are researched. Answer the following questions. Give your answers in millions of dollars, not dollars. Round all answers to 4 decimal places where possible.
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 0.1026 The indicated IQ score is (Round to the nearest whole number as needed.)
A population has a mean u = 87 and a standard deviation o= 21. Find the mean and standard deviation of a sampling distribution of sample means with sample sizen=249. (Simplify your answer.) (Type an integer or decimal rounded to three decimal places as needed.)
In a factory producing parts for an electronic appliance, the length of a large number of parts were measured. The mean and standard deviation were calculated as 3 mm and 0.05 mm respectively. Assuming the data are normally distributed, between what values do the lengths of the middle 99.7% of the parts fall?
The mean birth weight for children born in a certain country at full term (after 40 weeks) is 3500grams; the standard deviation for birth weight is 500 grams. The shape of the distribution is symmetric and unimodal. About 34% of the weights are between what two values?
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 0.6 The indicated la score, x, is。(Round to one decimal place as needed )
Based on data from a college, scores on a certain test are normally distributed with a mean of 1531 and a standard deviation of 324. Complete part below. b. Find the percentage of scores less than 1401.
According to a recent survey, the salaries of assistant professors have a mean of $41,750 and a standard deviation of $7000. Assuming that the salaries of assistant professors follow a normal distribution, find the proportion of assistant professors who earn at least $45,000. Round answer to at least 4 decimal places.
The birth weight of newborn babes (measured by O'Cathain et al, 2002 n = 3226) is approximately normally distributed with a mean of 3.39kg and standard deviation of 0.55kg. Rounded to three decimals, What weight does a baby have to have to be in the 97%?
The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 16 days. Using a TI 84 graphing calculator, Round to whole numbers and label. How many days in a pregnancy is located at the 45th percentile? Be sure to show calculator commands used

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