Assume that 25.6% of people have sleepwalked. Assume that in a random sample of 1520 adults,...
Assume that 25.6% of people have sleepwalked. Assume that in a random sample of 1520 adults, 428 have sleepwalked. a. Assuming that the rate of 25.6% is correct, find the probability that 428 or more of the 1520 adults have sleepwalked. b. Is that result of 428 or more significantly high? c. What does the result suggest about the rate of 25.6%? a. Assuming that the rate of 25.6% is correct, the probability that 428 or more of the 1520 adults have sleepwalked is . (Round to four decimal places as needed.)
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Assume that 25.6% of people have sleepwalked. Assume that in a
random sample of 1520 adults,...
Assume that 28.5% of people have sleepwalked. Assume that in a random sample of 1503 adults, 470 have sleepwalked. a. A...
Assume that 28.5% of people have sleepwalked. Assume that in a random sample of 1503 adults, 470 have sleepwalked. a. Assuming that the rate of 28.5% is correct, find the probability that 470 or more of the 1503 adults have sleepwalked. b. Is that result of 470 or more significantly high? c. What does the result suggest about the rate of 28.5%? . a. Assuming that the rate of 28.5% is correct, the probability that 470 or more of the...
Assume that 19.5% of people have sleepwalked. Assume that in a random sample of 1512 adults,...
Assume that 19.5% of people have sleepwalked. Assume that in a random sample of 1512 adults, 338 have sleepwalked. a. Assuming that the rate of 19.5% is correct, find the probability that 338 or more of the 1512 adults have sleepwalked. b. Is that result of 338 or more significantly high? c. What does the result suggest about the rate of 19.5% 19.519.5%?
The probability that fewer than 37 of 162 eligible voters voted is __ #2 Assuming that...
The probability that fewer than 37 of 162 eligible voters
voted is __
#2
Assuming that the rate of 27.8% is correct the probability
that 464 or more of the 1520 adults have sleepwalked is ___
#3
Homework: 12MML: Homework Score: 0 of 1 pt 6.6.9-T 4 of 7 (3 complete) HW Sco Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 161 eligible voters aged 18-24 are randomly selected...
A. B. C. D. 3 of 11 (9 complete) HW Score: 63.64%, 7 of 11 pts...
A.
B.
C.
D.
3 of 11 (9 complete) HW Score: 63.64%, 7 of 11 pts Score: 0 of 1 pt X 6.6.9-T Question Help Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 188 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged 18-24.22% of them voted. Probability that fewer than 45 voted The probability that fewer than 45 of 188...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.4. A sample of 37 U.S. adults i...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.4. A sample of 37 U.S. adults is chosen. Use the TI-84 Calculator as needed. Round the answer to four decimal places. Part 1 Is it appropriate to use the normal approximation to find the probability that more than 45% of the people in the sample have high blood pressure? It is and...
Suppose that a recent poll found that 50% of adults in a certain country believe that...
Suppose that a recent poll found that 50% of adults in a certain country believe that the overall state of moral values is poor. If a survey of a random sample of 20 adults in this country is conducted in which they are asked to disclose their feelings on the overall state of moral values, complete parts (a) through (e) below. Click here to view the table for the binomial probability distribution. Click here to view the table for the...
According to a survey in a country, 17% of adults do not have any credit cards....
According to a survey in a country, 17% of adults do not have any credit cards. Suppose a simple random sample of 300 adults is obtained. Determine the mean of the sampling distribution of p. HA (Round to two decimal places as needed.) Determine the standard deviation of the sampling distribution of p. (Round to three decimal places as needed.) (b) In a random sample of 300 adults, what is the probability that less than 14% have no credit cards?...
Sased on a smartphone survey, assume that 44% of adults with smartphones use them in theaters....
Sased on a smartphone survey, assume that 44% of adults with smartphones use them in theaters. In a separate survey of 270 adults with sma ound that 101 use them in theaters. . If the 44% rate is correct, find the probability of getting 101 or fewer smartphone owners who use them in theaters. -. Is the result of 101 significantly low? .. If the 44% rate is correct, the probability of getting 101 or fewer smartphone owners who use...
Based on a smartphone survey, assume that 40% of adults with smartphones use them in theaters....
Based on a smartphone survey, assume that 40% of adults with smartphones use them in theaters. In a separate survey of 227 adults with smartphones, it is found that 74 use them in theaters.a. If the 40% rate is correct, find the probability of getting 74 or fewer smartphone owners who use them in theaters.b. Is the result of 74 significantly low? a. If the 40 rate is correct, the probability of getting 74 or fewer smartphone owners who use...
When a scientist conducted a genetics experiments with peas, one sample of offspring consisted of 905...
When a scientist conducted a genetics experiments with peas, one sample of offspring consisted of 905 peas, with 683 of them having red flowers. If we assume, as the scientist did, that under these circumstances, there is a 3/4 probability that a pea will have a red flower, we would expect that 678.75 (or about 679) of the peas would have red flowers, so the result of 683 peas with red flowers is more than expected. a. If the scientist's...
Assume that 28.5% of people have sleepwalked. Assume that in a random sample of 1503 adults, 470 have sleepwalked. a. Assuming that the rate of 28.5% is correct, find the probability that 470 or more of the 1503 adults have sleepwalked. b. Is that result of 470 or more significantly high? c. What does the result suggest about the rate of 28.5%? . a. Assuming that the rate of 28.5% is correct, the probability that 470 or more of the...
The probability that fewer than 37 of 162 eligible voters
voted is __
#2
Assuming that the rate of 27.8% is correct the probability
that 464 or more of the 1520 adults have sleepwalked is ___
#3
Homework: 12MML: Homework Score: 0 of 1 pt 6.6.9-T 4 of 7 (3 complete) HW Sco Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 161 eligible voters aged 18-24 are randomly selected...
A.
B.
C.
D.
3 of 11 (9 complete) HW Score: 63.64%, 7 of 11 pts Score: 0 of 1 pt X 6.6.9-T Question Help Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 188 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged 18-24.22% of them voted. Probability that fewer than 45 voted The probability that fewer than 45 of 188...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.4. A sample of 37 U.S. adults is chosen. Use the TI-84 Calculator as needed. Round the answer to four decimal places. Part 1 Is it appropriate to use the normal approximation to find the probability that more than 45% of the people in the sample have high blood pressure? It is and...
Suppose that a recent poll found that 50% of adults in a certain country believe that the overall state of moral values is poor. If a survey of a random sample of 20 adults in this country is conducted in which they are asked to disclose their feelings on the overall state of moral values, complete parts (a) through (e) below. Click here to view the table for the binomial probability distribution. Click here to view the table for the...
According to a survey in a country, 17% of adults do not have any credit cards. Suppose a simple random sample of 300 adults is obtained. Determine the mean of the sampling distribution of p. HA (Round to two decimal places as needed.) Determine the standard deviation of the sampling distribution of p. (Round to three decimal places as needed.) (b) In a random sample of 300 adults, what is the probability that less than 14% have no credit cards?...
Sased on a smartphone survey, assume that 44% of adults with smartphones use them in theaters. In a separate survey of 270 adults with sma ound that 101 use them in theaters. . If the 44% rate is correct, find the probability of getting 101 or fewer smartphone owners who use them in theaters. -. Is the result of 101 significantly low? .. If the 44% rate is correct, the probability of getting 101 or fewer smartphone owners who use...
When a scientist conducted a genetics experiments with peas, one sample of offspring consisted of 905 peas, with 683 of them having red flowers. If we assume, as the scientist did, that under these circumstances, there is a 3/4 probability that a pea will have a red flower, we would expect that 678.75 (or about 679) of the peas would have red flowers, so the result of 683 peas with red flowers is more than expected. a. If the scientist's...
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