QUESTION 17The amount of time a bank teller spends with each customer has a population mean of 3 minutes and a standarddeviation of 0.40 minute. A random sample of 64 customers is selected. There is a 95% chance that the sample mean isless than how many minutes? Round your answer to three decimal places.QUESTION 18An automotive repair shop has determined that the service time on an automobile is normally distributed with a mean of100 minutes and a standard deviation of 15 minutes. What is the probability that a random sample of 9 automotiveservices will have a mean service time greater than 115 minutes? Round your answer to four decimal places.QUESTION 19Salaries of computer engineers in UAE are strongly right skewed with mean AED 34000 and standard deviation AED4500. A random sample of 9 computer engineers is taken. What is the probability that the average salary of the sample ismore than AED 32000?0.90880.0912Not enough information0.1545

17)Sample size n=64Population mean=3Population standard deviation=0.4NOTE: According to bartleby…

Answered: QUESTION 17 The amount of time a bank…

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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ASK YOUR TEACHER A normal distribution has a mean of 85.3 and a standard deviation of 4.84. Find the data value corresponding to z = 0.75
The heights of women follow a normal distribution with a mean height of 63.7, and a standard deviation in height of 2.9 in. What height separates the tallest 10% of women from the rest. Round your result to 1 decimal place.
A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she desires to be 98% confident that the true mean is within 2 ounces of the sample mean? The population standard deviation of the birth weights is known to be 5 ounces. O A. 6 O B. 33 O C. 34 O D. 5 Click to select your answer. DELL EVD RW Op DELL
Determine the number of standard deviations from the mean (z-score). In the United States, the distribution of a male's height has a mean of 69 inches with a standard deviation of 3 inches. How many standard deviations from the mean is John Doe, who is 67 inches tall? Question 15 options: 0.67 standard deviations below the mean 0.33 standard deviations below the mean 2 standard deviations below the mean 1 standard deviation below the mean
D Question 24 The weights of cats is Normally Distributed. The mean weight is 10 lbs with a standard deviation of 0.2 lbs. Draw the normal curve and fill in the cut scores and percentages. Then answer the questions below: Based on a sample of 600 cats, how many would you expect to weigh more than 10.4 lbs? Based on a sample of 600 cats, how many would you expect to weigh at least 9.8 lbs. but not more than 10.2 lbs? Based on a sample of 600 cats, how many would you expect to weigh more than 10 lbs?
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
QUESTION 13 Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. 10, 9, 20, 12, 19, 11, 14, 13, 20 1.8 4.4 4.1 4.7 O00
You are given the following information: sample mean is equal to 103.55, population standard deviation is equal to 14.88, sample size is equal to 111 and the national average is equal to 109. What would be the value of z-observed?

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