Mathematics, 26.11.2019 23:31 markaylarowland8

Alaptop company claims up to 11.0 hours of wireless web usage for its newest laptop battery life. however, reviews on this laptop shows many complaints about low battery life. a survey on battery life reported by customers shows that it follows a normal distribution with mean 10.5 hours and standard deviation 27 minutes. (a) what is the probability that the battery life is at least 11.0 hours? round your answer to four decimal places (e. g. 98.7654) (b) what is the probability that the battery life is less than 10.0 hours? round your answer to four decimal places (e. g.98.7654) (c) what is the time of use that is exceeded with probability 0.97 round your answer to two decimal places (e. g. 98.76). the time of use that is exceeded with probability 0.9 is

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 18:00

Describe the relationship between the angles of similar triangles and the sides of similar triangles

Answers: 1

Answer

Mathematics, 21.06.2019 20:00

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Answers: 1

Answer

Mathematics, 21.06.2019 21:30

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Answers: 2

Answer

Mathematics, 22.06.2019 01:40

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec

Answers: 2

Answer

You know the right answer?

Alaptop company claims up to 11.0 hours of wireless web usage for its newest laptop battery life. ho...

Questions

Mathematics, 18.02.2021 05:40

PLEASE HELP ITS DUE TONIGHT The point P = (x, (-1/4)) lies on the unit circle shown below what is the value of X in simplest form?