Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres (L) of gasolineCustomers. Assume the number of litres sold follows the normal distribution with a standard deviation of 2 L. From his reselects a random sample of 10 sales and finds the mean number of litres sold is 32.a. What is the point estimate of the population mean? (Round the final answer to the nearest whole number.)The point estimate of the population mean is32 litres.b. Develop a 95% confidence interval for the population mean. (Round the final answers to 3 decimal places.)The 95% confidence interval for the population mean is between30.761 and 33.239c Interpret the meaning of part (b).100 such intervals were determined, the population (Click to select) v would be included in aboutintervals.

Answered: Image /qna-images/answer/7d6fd39a-f0f9-4c88-9cce-97d7af305510.jpg

Answered: Bob Nale is the owner of Nale's Texaco…

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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II. Refer to the problem below. Show complete solutions. Box and label your final answers. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution. 95% of the female students in a school have a systolic blood pressure between 97 mm and 153 mm. 1. Determine the mean. 2. Determine the standard deviation
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?
The mean value of land and buildings per acre from a sample of farms is $1400, with a standard deviation of $200. The data set has a bell-shaped distribution. Assume the number of farms in the sample is 74. Use the empirical rule to estimate the number of farms whose land and building values per acre are between $1000 and $1800. round to nearest tenth
The data is in the height column. Answer 7 to 10
The board of examiners that administers the real estate broker's examination in a certain state found that the mean score on the test was 494 and the standard deviation was 72. If the board wants to set the passing score so that only the best 10% of all applicants pass, what is the passing score? Assume that the scores are normally distributed. Round to the nearest whole number.
The weights for newborn babies is approximately normally distributed with a mean of 6.1 pounds and a standard deviation of 1.8 pounds. Use the Cumulative Z-Score Table to answer the questions below. Write your answers rounded to the nearest whole number. Consider a group of 1200 newborn babies: • How many would you expect to weigh between 7.72 and 9.34 pounds? • How many would you expect to weigh less than 9.7 pounds? How many would you expect to weigh more than 6.37 pounds? How many would you expect to weigh between 6.1 and 7.54 pounds?
Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a standard deviation of 100. What percent of students who took the test have a mathematics score between 590 and 640? FAUTE E CEL Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. a S ........ % of students who took the test have a mathematics score between 590 and 640. (Round to two decimal places as needed.).
Human body temperatures for healthy individuals have approximately a normal distribution with mean 98.25 °F and standard deviation .75 °F. (The past accepted value of 98.6 Fahrenheit was obtained by converting the Celsius value of 370, which is correct to the nearest integer.) a. Find the 90th percentile of the distribution. b. Find the 5th percentile of the distribution. c. What temperature separates the coolest 25% from the others?
Interpret the result and explain whether there is a significant gender difference. student ID s12042516 as the case. w=6
All of the data is in the two pictures
In the 1992 presidential election, Alaska's 40 election districts averaged 1989 votes per district for President Clinton. The standard deviation was 568. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. a. What is the distribution of X? X ~ N( __ , __ ) b. Is 1989 a population mean or a sample mean? Select an answer _______. c. Find the probability that a randomly selected district had fewer than 2087 votes for President Clinton. _____ d. Find the probability that a randomly selected district had between 1905 and 2194 votes for President Clinton.______ e. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number. ______
Q) The RATES of a SWEET BOX follows a normal distribution with a mean of $2.20 and a standard deviation of $0.20. Find the RATE for which 10.23% of sweet boxes are exceeded. Round your answer to nearest cent (hundredth) if necessary.

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