Mathematics, 28.07.2021 22:30 edgytaehyung
In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are normally distributed. A quality control specialist collects a random sample of 16 rods and finds the sample mean length to be 14.8 feet and a standard deviation of 0.65 feet.
a. Describe the sampling distribution for the sample mean.
b. What is the standard error?
c. For 95% confidence, what is the margin of error?
d. Based on the sample results, create the 95% confidence interval and interpret.
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 17:00
Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?
Answers: 1
Mathematics, 21.06.2019 18:00
Write the fraction or mixed number and the decimal shown by the model
Answers: 2
Mathematics, 21.06.2019 22:30
What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove
Answers: 1
Mathematics, 21.06.2019 23:00
Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122
Answers: 1
You know the right answer?
In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Sup...
Questions
Business, 09.05.2021 19:30
Computers and Technology, 09.05.2021 19:30
Computers and Technology, 09.05.2021 19:30
Health, 09.05.2021 19:30
English, 09.05.2021 19:40
Mathematics, 09.05.2021 19:40
Mathematics, 09.05.2021 19:40
Mathematics, 09.05.2021 19:40
History, 09.05.2021 19:40
Mathematics, 09.05.2021 19:40
Mathematics, 09.05.2021 19:40
