The lengths of pregnancies are normally distributed with a mean of 272 days and a standard...
The lengths of pregnancies are normally distributed with a mean of 272 days and a standard deviation of 15 days. If 35 women are randomly selected, find the probability that they have a mean pregnancy between 271 days and 275 days..
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The lengths of pregnancies are normally distributed with a mean
of 272 days and a standard...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. (a) Find the probability that an individual woman has a pregnancy shorter than 259 days. (b) If 36 women are randomly selected, find the probability that they have a mean preg- nancy shorter than 259 days. (c) There should be a difference in your method for the previous two questions. Explain what you did differently for each problem and...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. (a) Find the probability that an individual woman has a pregnancy shorter than 259 days. (b) If 36 women are randomly selected, find the probability that they have a mean preg- nancy shorter than 259 days. (c) There should be a difference in your method for the previous two questions. Explain what you did differently for each problem and...
me lengths of a particular animal's pregnancies are approximately normally distributed, with mean p=272 days and...
me lengths of a particular animal's pregnancies are approximately normally distributed, with mean p=272 days and standard deviation o = 20 days. ) What proportion of pregnancies lasts more than 277 days? What proportion of pregnancies lasts between 262 and 287 days? c) What is the probability that a randomly selected pregnancy lasts no more than 267 days? d) A "very preterm baby is one whose gestation period is less than 227 days. Are very preterm babies unusual? a) The...
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard...
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 308 days or longer. b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies from those who are not premature. Click to view page 1 of the table. Click to view page 2 of the table. a. The probability...
1) The lengths of pregnancies of humans are normally distributed with a mean of 268 days...
1) The lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15 days. Find the probability of a pregnancy lasting less than 250 days. 2) The lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15 days. Find the probability of a pregnancy lasting more than 300 days. 3) An airline knows from experience that the distribution of the number...
1. The lengths of pregnancies are normally distributed with a mean of 268 days and a...
1. The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. a) Find the 80th percentile of pregnancy length. b) Find the pregnancy length that separates the upper 30% c) Find the pregnancy lengths that separate the middle 80% d) Find the percent of pregnancies that are less than 260 days. e) Find the percent of pregnancies that are between 250 and 280 days
Question 6 9 pts The lengths of all pregnancies are normally distributed with a mean of...
Question 6 9 pts The lengths of all pregnancies are normally distributed with a mean of 273 days and a standard deviation of 20 days. If 64 women are randomly selected, find the probability that they have a mean pregnancy between 270.5 days and 275.5 days. Question 7 9 pts The distribution of body temperatures of all adults has a mean of 98.6°F and a standard deviation of 0.60° F. If a sample of 49 adults are randomly selected, find...
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 309 days or longer. b. If the length of pregnancy is in the lowest 2%, then the baby is premature. Find the length that separates premature babies from those who are not premature. a. The probability that a pregnancy will last 309 days or longer is _______ (Round to four decimal places as...
please answer it all not using excel 8. The lengths of pregnancies are normally distributed with...
please answer it all not using excel
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. (a) Find the probability that an individual woman has a pregnancy shorter than 259 days. (b) If 36 women are randomly selected, find the probability that they have a mean preg- nancy shorter than 259 days. (c) There should be a difference in your method for the previous two questions. Explain what...
The lengths of pregnancies are normally distributed with a mean of 268 days and a standard...
The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 309 days or longer. b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies from those who are not premature. Click to view page 1 of the table. Click to view page 2 of the table. a. The probability...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. (a) Find the probability that an individual woman has a pregnancy shorter than 259 days. (b) If 36 women are randomly selected, find the probability that they have a mean preg- nancy shorter than 259 days. (c) There should be a difference in your method for the previous two questions. Explain what you did differently for each problem and...
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. (a) Find the probability that an individual woman has a pregnancy shorter than 259 days. (b) If 36 women are randomly selected, find the probability that they have a mean preg- nancy shorter than 259 days. (c) There should be a difference in your method for the previous two questions. Explain what you did differently for each problem and...
me lengths of a particular animal's pregnancies are approximately normally distributed, with mean p=272 days and standard deviation o = 20 days. ) What proportion of pregnancies lasts more than 277 days? What proportion of pregnancies lasts between 262 and 287 days? c) What is the probability that a randomly selected pregnancy lasts no more than 267 days? d) A "very preterm baby is one whose gestation period is less than 227 days. Are very preterm babies unusual? a) The...
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 308 days or longer. b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies from those who are not premature. Click to view page 1 of the table. Click to view page 2 of the table. a. The probability...
1) The lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15 days. Find the probability of a pregnancy lasting less than 250 days. 2) The lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15 days. Find the probability of a pregnancy lasting more than 300 days. 3) An airline knows from experience that the distribution of the number...
Question 6 9 pts The lengths of all pregnancies are normally distributed with a mean of 273 days and a standard deviation of 20 days. If 64 women are randomly selected, find the probability that they have a mean pregnancy between 270.5 days and 275.5 days. Question 7 9 pts The distribution of body temperatures of all adults has a mean of 98.6°F and a standard deviation of 0.60° F. If a sample of 49 adults are randomly selected, find...
please answer it all not using excel
8. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. (a) Find the probability that an individual woman has a pregnancy shorter than 259 days. (b) If 36 women are randomly selected, find the probability that they have a mean preg- nancy shorter than 259 days. (c) There should be a difference in your method for the previous two questions. Explain what...
The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 309 days or longer. b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies from those who are not premature. Click to view page 1 of the table. Click to view page 2 of the table. a. The probability...
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