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3. A. C. Neilsen reported that children between the ages of 2 and 5 watch an...
A. C. Neilsen reported that children between the ages of 2 and 5 watch an average...
A. C. Neilsen reported that children between the ages of 2 and 5 watch an average of 25 hours of television per week. Assume the variable is normally distributed and the standard deviation is 3 hours. If 20 children between the ages of 2 and 5 are randomly selected, find . Give answer to three decimal places.
A.C. Neilsen reported that children between the ages of 2 and 5 watch an average of...
A.C. Neilsen reported that children between the ages of 2 and 5 watch an average of 25 hours of television per week. Assume the variable is normally distributed and the standard deviation is 3 hours. If 20 children between the ages of 2 and 5 are randomly selected, find the probability that the mean of the number of hours they watch television will be greater than 26.3 hours. Group of answer choices 14.7% .19% 97.38% 13.1% 2.62% Flag this...
Researchers report that children between the ages of 2 and 5 years watch an average of...
Researchers report that children between the ages of 2 and 5 years watch an average of 25 hours of television per week. Assume that the variable time is distributed normally with a standard deviation of 2 hours. A random sample of 40 children between the ages of 2 and 5 was chosen. Let X be the average time a randomly selected group of 40 children between the ages of 2 and 5 watch television per week? Then I 25 NI...
Researchers report that children between the ages of 2 and 5 years watch an average of...
Researchers report that children between the ages of 2 and 5 years watch an average of 25 hours of television per week. Assume that the variable time is distributed normally with a standard deviation of 2 hours. A random sample of 40 children between the ages of 2 and 5 was chosen. What is the probability that the average time of the selected group of 40 children between the ages of 2 and 5 watch more than 25.5 hours of...
5. Assume the readings on thermometers are normally distributed with a mean of 0°C and a...
5. Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. Find the probability that a randomly selected thermometer reads between −2.26 and −1.53 and draw a sketch of the region. 6. Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the probability of a bone...
(1 t) Scores on a tan inteligence test for children between ages 13 and between ages...
(1 t) Scores on a tan inteligence test for children between ages 13 and between ages 13 and 1 5 years are approximately normally distributed with 101 and of children aged 13 to 15 years old have scores on this test above 87 2 NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) Answer: 7823 (b) Enter the score which marks the lowest 30 percent of the distribution Answer (G) Enter the score...
scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
scores on a certain intelligence test for children
between ages 13 and 15 years are approximately normally distributed
with u= 106 o=18
om a and a Il be- 20. (1 point) Scores on a certain intelligence test for chil- dren between ages 13 and 15 years are approximately normally distributed with u= 106 and o=18. (a) What proportion of children aged 13 to 15 years old have scores on this test above 96 ? (NOTE: Please enter your answer in...
The U.S. Bureau of Labor and Statistics reported that a person between the ages of 18...
The U.S. Bureau of Labor and Statistics reported that a person between the ages of 18 and 34 has had an average of 9.2 jobs. To see if this average is correct, a researcher selected a sample of 6 workers between the ages of 18 and 34 and asked how many different places they had worked The results were as follows: Download Data At ?-0.01, can it be concluded that the mean is 9.2? Use the P-value method. Assume the...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with ?=101 and ?=15. (a) What proportion of children aged 13 to 15 years old have scores on this test above 91 ? (Reminder: proportions are between 0 and 1 - don't put in percentages!) (b) Enter the score which marks the lowest 25 percent of the distribution. (c) Enter the score which marks the highest 5 percent of the distribution.
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with ?=106 and ?=21. (a) What proportion of children aged 13 to 15 years old have scores on this test above 88 ? (Reminder: proportions are between 0 and 1 - don't put in percentages!) Answer: (b) Enter the score which marks the lowest 25 percent of the distribution. Answer: (c) Enter the score which marks the highest 5 percent of the...
Researchers report that children between the ages of 2 and 5 years watch an average of 25 hours of television per week. Assume that the variable time is distributed normally with a standard deviation of 2 hours. A random sample of 40 children between the ages of 2 and 5 was chosen. Let X be the average time a randomly selected group of 40 children between the ages of 2 and 5 watch television per week? Then I 25 NI...
Researchers report that children between the ages of 2 and 5 years watch an average of 25 hours of television per week. Assume that the variable time is distributed normally with a standard deviation of 2 hours. A random sample of 40 children between the ages of 2 and 5 was chosen. What is the probability that the average time of the selected group of 40 children between the ages of 2 and 5 watch more than 25.5 hours of...
(1 t) Scores on a tan inteligence test for children between ages 13 and between ages 13 and 1 5 years are approximately normally distributed with 101 and of children aged 13 to 15 years old have scores on this test above 87 2 NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) Answer: 7823 (b) Enter the score which marks the lowest 30 percent of the distribution Answer (G) Enter the score...
scores on a certain intelligence test for children
between ages 13 and 15 years are approximately normally distributed
with u= 106 o=18
om a and a Il be- 20. (1 point) Scores on a certain intelligence test for chil- dren between ages 13 and 15 years are approximately normally distributed with u= 106 and o=18. (a) What proportion of children aged 13 to 15 years old have scores on this test above 96 ? (NOTE: Please enter your answer in...
The U.S. Bureau of Labor and Statistics reported that a person between the ages of 18 and 34 has had an average of 9.2 jobs. To see if this average is correct, a researcher selected a sample of 6 workers between the ages of 18 and 34 and asked how many different places they had worked The results were as follows: Download Data At ?-0.01, can it be concluded that the mean is 9.2? Use the P-value method. Assume the...
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