![HeartfeltDream12](/avatars/48435.jpg)
HeartfeltDream12
21.10.2020 •
Mathematics
The question is in the picture!! pls help
Solved
Show answers
More tips
- S Science and Technology Colliders: How They Work and Why They Matter...
- C Construction and repair How to Choose the Best Underfloor Heating?...
- C Computers and Internet How to Get Rid of Windows Genuine Check?...
- C Computers and Internet War of Social Media: Which Platform is the Leader?...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
Answers on questions: Mathematics
- M Mathematics Let f be a function for a recursive sequence where the rule f(n + 1) = f(n) + f(n – 1)determines the (n + 1)th term. Given this and the first two terms of the sequence, select...
- C Chemistry Considered together, kinetic and potential energy on a macroscopic scale are known as ? 1-mechanical energy 2-internal energy 3-light energy 4-thermal energy...
- H History What difficulties were faded in building the panamal canal...
- B Biology By studying the plants Mendel concluded that traits of all organisms are passed parent to offspring this passing of traits onto offspring is called......
- P Physics v(t) = 12 sin(913t + 71°) volts. Find (a) angular frequency in radians per second, (b) frequency in Hz, (c) period, (d) maximum voltage, (e) minimum voltage, (f) Peak-to-Peak...
- C Chemistry Match each vocabulary word with the definition. def. 1.)substance composed of two or more different type of atoms 2.)smallest particle of matter still retaining the same chemical...
Ответ:
$16,341< μ <$22,459.
Step-by-step explanation:
The formula for calculating confidence interval is expressed as;
CI = xbar±(z×s/√n)
xbar is the mean tuition
z is the z score at 90% CI
s is the standard deviation
n is the sample size
Given
xbar = $19,400
s = $11,000
n = 35
z = 1.645
Substitute into the formula for calculating confidence interval
CI = xbar±(z×s/√n)
CI = 19400±(1.645×11000/√35)
CI = 19400±(1.645×11000/5.916)
CI = 19400±(1.645×1859.36)
CI = 19400±3058.65
CI = [19400-3,058.65, 19400+3,058.65]
CI = [16,341.35, 22,458.65]
CI = [16,341, 22,459] to nearest whole number.
Hence a 90% confidence interval for the mean tuition for all colleges and universities is 16,341< μ <22,459.