Question

The relief time provided by a standard dose of a popular children’s allergy medicine averages six...

The relief time provided by a standard dose of a popular children’s allergy medicine averages six hours with a standard deviation of two hours. [You may find it useful to reference the z table.] a. Determine the percentage of children who experience relief for less than four hours if the relief time follows a normal distribution. (Round your answer to 2 decimal places.) b. Determine the percentage of children who experience relief for less than four hours if the relief time follows a lognormal distribution. (Round your intermediate calculations to at least 4 decimal places, “z” value to 2 decimal places, and final answer to 2 decimal places.)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Let Z be the z-score for a standard normal distribution. Find the area under the...
1. Let Z be the z-score for a standard normal distribution. Find the area under the curve for Z> -1.58. Keep four decimal places. 2. Suppose the time spent by children in front of the television set per year is normally distributed with a mean of 1500 hours and a standard deviation of 250 hours. What percentage of children spend at least 1300 hours in front of the television. Express your answer to the nearest tenth of a percent without...
The amount of time between taking a pain reliever and getting relief is normally distributed with...
The amount of time between taking a pain reliever and getting relief is normally distributed with a mean of 25 minutes and a standard deviation of 5 minutes. Find the probability that the time between taking the medication and getting relief is as follows. (Round your answers to four decimal places.) (a) at least 31 minutes (b) at most 20 minutes
The amount of time between taking a pain reliever and getting relief is normally distributed with...
The amount of time between taking a pain reliever and getting relief is normally distributed with a mean of 23 minutes and a standard deviation of 7 minutes. Find the probability that the time between taking the medication and getting relief is as follows. (Round your answers to four decimal places.) (a) at least 31 minutes (b) at most 20 minutes
The amount of time between taking a pain reliever and getting relief is normally distributed with...
The amount of time between taking a pain reliever and getting relief is normally distributed with a mean of 25 minutes and a standard deviation of 5 minutes. Find the probability that the time between taking the medication and getting relief is as follows. (Round your answers to four decimal places. (a) at least 31 minutes (b) at most 22 minutes
An organization installs new garage doors on residential homes. Suppose the installation time for a residence...
An organization installs new garage doors on residential homes. Suppose the installation time for a residence follows the uniform distribution with a minimum time of 190 minutes and a maximum time of 380 minutes. Complete parts a through e. a. What is the probability that an installation will require less than 55 hours to​ complete? The probability is ________. ​(Round to four decimal places as​ needed.) b. What is the probability that an installation will require more than 44 hours...
The director of research and development is testing a new medicine. She wants to know if...
The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.0250.025 level that the medicine relieves pain in less than 305305 seconds. For a sample of 1717 patients, the average time in which the medicine relieved pain was 299299 seconds with a standard deviation of 2525. Assume the population distribution is approximately normal. 1. State the null and alternative hypotheses. 2. Find the value of the test statistic. Round...
Suppose that the time spent by children in front of the television set per year has...
Suppose that the time spent by children in front of the television set per year has a distribution   N(1500, 250); i.e, normal with mean 1500 and standard deviation 250. What proportion of children spend less than 1000 hours in front of the television? (Express your answer as a decimal, do not convert to percent. Keep four decimal places.) What proportion of children spend more than 1700 hours in front of the television? (Express your answer as a decimal, do not...
Let be a standard normal random variable. Use the calculator provided, or this table, to determine...
Let be a standard normal random variable. Use the calculator provided, or this table, to determine the value of P (c is less than or greater to Z is less than or greater to -0.87) =0.1570. Carry your intermediate computations to at least four decimal places. Round your answer to two decimal places
In a study of parents’ perceptions of their children’s size, researchers Kaufman et al. (Current Biology,...
In a study of parents’ perceptions of their children’s size, researchers Kaufman et al. (Current Biology, 2013) asked parents to estimate their youngest child’s height. The researchers hypothesized that parents tend to underestimate their youngest child’s size because the youngest child is the baby of the family and everybody else is the family appears bigger compared to the baby. The sample of 33 parents who were surveyed underestimated their youngest child’s height by 7.3 cm, on average; the standard deviation...
The amount of time fathers spend with their child(ren) follows a normal distribution with mean 7...
The amount of time fathers spend with their child(ren) follows a normal distribution with mean 7 hours and standard deviation 0.5 hours. Determine the sampling distribution of the sample mean for samples of size n = 4. Indicate the mean (round to two decimal places), standard deviation (round to two decimal places), and shape (normal or not normal). The mean of the sample mean is ______ hours; the standard deviation of the sample mean is _______ hours; and the shape...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT