QUESTION 6The mean diameter of a ball bearing produced by a certain manufacturer is 0.50 cm with a standard deviation of 0.02 cm. A sample of 25 ball bearings israndomly selected from a production run. The sample had a mean of 0.50004 and a median 0.49714. What is the standard error for the sample mean?O A. 0.004O B. 0.0004O C. 0.4O D. 0.04O E. 0.00004QUESTION 7A sample of 36 is taken from a population that is normally distributed with mean 15 and standard deviation 3. What is the probability that the samplemean will be more than 15.97?O A. 0.6268O B. 0.9378DELLPrtScrF9F10F11F6F7F8F2F3F4E5F123%3457

Given Data Population Mean,μ = 0.5 Population Standard Deviation,σ = 0.02

Answered: QUESTION 6 The mean diameter of a ball…

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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Question 5 The mean height of an adult giraffe is 19 feet. Suppose that the distribution is normally distributed with standard deviation 0.8 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X N( b. What is the median giraffe height? ft. c. What is the Z-score for a giraffe that is 22 foot tall? d. What is the probability that a randomly selected giraffe will be shorter than 19.4 feet tall? e. What is the probability that a randomly selected giraffe will be between 18 and 18.8 feet tall? ft. f. The 85th percentile for the height of giraffes is Hint: Helpful videos: • Find a Probability [+] Finding a Value Given a Probability [+] Hint Question Help: Message instructor Submit Question
question 20 The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 71 minutes and a standard deviation of 16 minutes. Suppose one person at the hot springs is randomly chosen. Let X = the amount of time that person spent at Grover Hot Springs . Round all answers to 5 decimal places where possible. c. The park service is considering offering a discount for the 8% of their patrons who spend the least time at the hot springs. What is the longest amount of time a patron can spend at the hot springs and still receive the discount ? minutes.d. Find the Inter Quartile Range (IQR) for time spent at the hot springs.Q1: minutesQ3: minutesIQR: minutes
Question 4
Consider the data from the Anthropology 105 class. The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?
Question 8 A survey found that women's heights are normally distributed with mean 64.2 inches and standard deviation 2.6 inches The survey also found that men's heights are normally distributed with mean 69.6 inches and standard deviation 3.4 inches Most of the live characters employed at an amusement park have height requirements of a minimum of 57 inches and a maximum of 64 inches 1. The percentage of men who meet the height requirement is _____ Circle which one is correct 2. Since most men (meet/do not meet) the height requirement, it is likely that most of the characters are (women/men) 3. The new height requirements are a minimum of______ inches and and maximum of _______inches
QUESTION 10 Solve the problem. Find the standardized test statistic t for a sample with n = 12, x = 20.6, s = 2.1, and a = 0.01 if Ha: H 21.1. Round your answer to three decimal places. O a. -0.825 O b. -0.037 OC. -0.381 O d.-0.008
QUESTION 20 The time spent on social media platforms per day by adults has a distribution with a mean of 125 minutes and a standard deviation of 16 minutes. A random sample of size 16 adults is selected from the population. Find the mean and standard error of the sample mean time spent on social media platforms per day.
Question 13 The time to complete an exam is approximately Normal with a mean of 43 minutes and a standard deviation of 5 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. H = 43 o = 5 H-30 u-20 u+ 20 u+ 30 00 Question Help: e Written Example Message instructor Submit Question Jump to Answer
QUESTION 20 The time spent on social media platforms per day by adults has a distribution with a mean of 125 minutes and a standard deviation of 16 minutes. A random sample of size 16 adults is selected from the population. Find the mean and standard error of the sample mean time spent on social media platforms per day.
Question 8 A survey found that women's heights are normally distributed with mean 62.4 inches and standard deviation 2.6 inches The survey also found that men's heights are normally distributed with mean 69.6 inches and standard deviation 3.4 inches Most of the live characters employed at an amusement park have height requirements of a minimum of 57 inches and a maximum of 64 inches 1. The percentage of men who meet the height requirement is _____ Circle which one is correct 2. Since most men (meet/do not meet) the height requirement, it is likely that most of the characters are (women/men) 3. The new height requirements are a minimum of______ inches and and maximum of _______inches
QUESTION 20 Larger values of the standard deviation result in a normal curve that is a. skewed to the left. b. narrower and more peaked. c. wider and flatter. d. skewed to the right.

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