Find the 95% confidence interval for estimating the population mean of the starting salaries of college graduates who have taken a statistics course. Assume that the population is normally distributed, and known to be Php 9900. 28 samples were taken, and a sample mean of X = Php 45 678 was obtained. is

Find the 95% confidence interval for estimating the population mean of the starting salaries of college graduates who have taken a statistics course. Assume that the population is normally distributed, and known to be Php 9900. 28 samples were taken, and a sample mean of X = Php 45 678 was obtained. is

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The pulse rates of 176 randomly selected adult males vary from a low of 40 bpm to a high of 116 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 95% confidence that the sample mean is within 2 bpm of the population mean.
The heights of 9 men were taken with sample mean of 165 cm and standard deviation 5 cm. The heights of 7 Japanese women were taken with sample mean of 150 cm and standard deviation 3 cm. Assuming that the population standard deviations for heights of men and women are both the same, construct the 95% confidence interval for the difference in mean heights between men and women.
The mean score and standard deviation of the test scores of students in Section 208 of a statistics course are 25.4 and 4.85 respectively while the mean score and standard deviation of the test scores of students in Section 209 in the course are 22.3 and 4.85 respectively. a) Which section did better on average? b) In which section are students scores less varied ?
Suppose we have data coming from 69 i.i.d) observations. The sample mean is JÓ28 and the sample standard deviation is calculated to be 1.63. Find a 95% confidence interval for the true mean.
A factory manager knows that the pieces produced by their machine will have lengths which are normally distributed, with mean 10 cm and standard deviation 4 mm. If this is true, then 95% of the pieces produced will have lengths between What?
Imagine that for those who meditate daily, the number of minutes in meditation has mean 35 and standard deviation 10. In a group of 200 such persons, how many are expected to meditate more than 43 minutes per day?
Determine the margin of error in estimating the population mean, μ. Based on a sample of size 44, a 95% confidence interval for the mean score of all students, μ, on an aptitude test is from 67 to 72. Find the margin of error.
The mean height of the starting players in a basketball means is 1.82 m. During a time has a player who is 1.58m is replaced by a player 1.88m tall. What is the mean midpoint of the players after the replacement has been make ?
A sample has mean of 36 and a standard deviation of 8. Would a score of 36 be considered a central score or extreme score
Suppose a random sample of 50 baksetball players showed the average height to be 78 inches. Also assume that the population standard deviation is 1.5 inches. Find 99% confidence interval for the population mean height.
If the sample mean is 8, the hypothesized population mean is 4, and the population standard deviation is 2, compute the test value needed for the z test.
To estimate the average salary of policemen, 64 of them were taken as samples. If the mean salary of these samples is Php. 25,000 with standard deviation of Php. 800, construct a 90% confidence interval estimate for the average salary of all policemen.