Mathematics, 24.06.2020 03:01 madivassallo
A company has developed a new type of light bulb, and wants to estimate its mean
lifetime. A simple random sample of 12 bulbs had a sample mean lifetime of 665
hours with a sample standard deviation of 59 hours. It is reasonable to believe that
the population is approximately normal. Find the lower bound of the 95% confidence
interval for the population mean lifetime of all bulbs manufactured by this new
process.
Round to the nearest integer. Write only a number as your answer. Do not write any
units.
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 17:30
Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is
Answers: 3
Mathematics, 21.06.2019 17:40
Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane
Answers: 2
Mathematics, 21.06.2019 19:30
Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points
Answers: 2
Mathematics, 21.06.2019 20:30
Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?
Answers: 2
You know the right answer?
A company has developed a new type of light bulb, and wants to estimate its mean
lifetime. A simple...
Questions
Mathematics, 28.01.2021 19:30
Mathematics, 28.01.2021 19:30
Mathematics, 28.01.2021 19:30
Social Studies, 28.01.2021 19:30
History, 28.01.2021 19:30
English, 28.01.2021 19:30
Mathematics, 28.01.2021 19:30
Mathematics, 28.01.2021 19:30
