Mathematics, 18.12.2021 01:00 mathisaqeosmw

The lengths of text messages are normally distributed with a population standard deviation of 3 characters and an unknown population mean. If a random sample of 29 text messages is taken and results in a sample mean of 25 characters, find a 98% confidence interval for the population mean. Round your answers to two decimal places. z0.10 z0.05 z0.04 z0.025 z0.01 z0.005 1.282 1.645 1.751 1.960 2.326 2.576 You may use a calculator or the common z-values above.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, kaitlyn114433

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Answers: 1

continue

Mathematics, 21.06.2019 17:30, edfwef5024

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Answers: 2

continue

Mathematics, 21.06.2019 23:00, dianereyes7475

The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2

Answers: 2

continue

Mathematics, 22.06.2019 03:20, trying1to1pass

Given a normal distribution with µ=20 and σ = 4, what is the probability that x> 24 x< 24 x< 24 or x> 24

Answers: 2

continue

You know the right answer?

The lengths of text messages are normally distributed with a population standard deviation of 3 char...