A population of values has a normal distribution with
μ=180.1μ=180.1 and σ=93.4σ=93.4. You intend to draw a random sample
of size n=90n=90.
Find the probability that a single randomly selected value is
greater than 185.
P(X > 185) =
Find the probability that a sample of size n=90n=90 is randomly
selected with a mean greater than 185.
P(¯xx¯ > 185) =
A population of values has a normal distribution with
μ=167.8μ=167.8 and σ=34.4σ=34.4. You intend to draw a random sample
of size n=103n=103.
Find the probability that a single randomly selected value is
between 160.7 and 171.5.
P(160.7 < X < 171.5) =
Find the probability that a sample of size n=103n=103 is randomly
selected with a mean between 160.7 and 171.5.
P(160.7 < ¯xx¯ < 171.5) =
A population of values has a normal distribution with μ=9.6μ=9.6
and σ=5.8σ=5.8. You intend to draw a random sample of size
n=19n=19.
Find the probability that a sample of size n=19n=19 is randomly
selected with a mean greater than 7.2.
P(¯xx¯ > 7.2) =
A population of values has a normal distribution with
μ=47.5μ=47.5 and σ=32.6σ=32.6. You intend to draw a random sample
of size n=82n=82.
Find the probability that a sample of size n=82n=82 is randomly
selected with a mean between 41.4 and 42.1.
P(41.4 < ¯xx¯ < 42.1) =
A population of values has a normal distribution with μ=180.1μ=180.1 and σ=93.4σ=93.4. You intend to draw...
A population of values has a normal distribution with μ=115.6 and σ=46.5. You intend to draw a random sample of size n=183. a. Find the probability that a single randomly selected value is between 118.7 and 126.6. P(118.7 < X < 126.6) = b. Find the probability that a sample of size n=183 is randomly selected with a mean between 118.7 and 126.6. P(118.7 < ¯xx¯ < 126.6) = Enter your answers as numbers accurate to 4 decimal places.
A population of values has a normal distribution with μ=26 and σ=44.4. You intend to draw a random sample of size n=231. Find the probability that a sample of size n=231 is randomly selected with a mean between 31.8 and 35.1. P(31.8 < M < 35.1) =
A population of values has a normal distribution with μ=126.4μ=126.4 and σ=38.6σ=38.6. You intend to draw a random sample of size n=148n=148. Find the probability that a single randomly selected value is greater than 121.5. P(X > 121.5) = Find the probability that a sample of size n=148n=148 is randomly selected with a mean greater than 121.5. P(¯xx¯ > 121.5) = Enter your answers as numbers accurate to 4 decimal places. Answers should be obtained using zz scores correct to...
A population of values has a normal distribution with μ=98μ98 and σ=53.4σ53.4. You intend to draw a random sample of size n=201n201. Find the probability that a single randomly selected value is greater than 86.3. P(X > 86.3) = Round to 4 decimal places. Find the probability that the sample mean is greater than 86.3. P(¯¯¯XX > 86.3) = Round to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 2 decimal places are accepted.
A population of values has a normal distribution with μ=26μ=26 and σ=31.6σ=31.6. You intend to draw a random sample of size n=214n=214. Find the probability that a single randomly selected value is between 21.5 and 22.5. P(21.5 < X < 22.5) = Find the probability that a sample of size n=214n=214 is randomly selected with a mean between 21.5 and 22.5. P(21.5 < M < 22.5) =
A population of values has a normal distribution with μ=72μ=72 and σ=30σ=30 . You intend to draw a random sample of size n=25n=25 . Find the probability that a single randomly selected value from the population is less than 58.2. P(X < 58.2) = Find the probability that a sample of size n=25n=25 is randomly selected with a mean less than 58.2. P(M < 58.2) =
A population of values has a normal distribution with μ=152.3 and σ=54.2. You intend to draw a random sample of size n=245. Find the probability that a single randomly selected value is between 141.2 and 145.4. P(141.2 < X < 145.4) = Find the probability that a sample of size n=245 is randomly selected with a mean between 141.2 and 145.4. P(141.2 < M < 145.4) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using...
A population of values has a normal distribution with μ=200.5μ=200.5 and σ=56.9σ=56.9. You intend to draw a random sample of size n=131n=131. Find the probability that a single randomly selected value is less than 204.8. P(X < 204.8) = Find the probability that a sample of size n=131n=131 is randomly selected with a mean less than 204.8. P({¯x{x¯ < 204.8) = Enter your answers as numbers accurate to 4 decimal places. Answers should be obtained using zz scores correct to...
1. A population of values has a normal distribution with μ=182.1 and σ=28.9. You intend to draw a random sample of size n=117. A. Find the probability that a single randomly selected value is less than 187.7. P(X < 187.7) = B. Find the probability that a sample of size n=117is randomly selected with a mean less than 187.7. P(¯x < 187.7) = 2. CNNBC recently reported that the mean annual cost of auto insurance is 1045 dollars. Assume the...
A population of values has a normal distribution with μ=165.1μ=165.1 and σ=72.7σ=72.7. You intend to draw a random sample of size n=195n=195. Find the probability that a single randomly selected value is between 149.5 and 151.6. P(149.5 < X < 151.6) = Find the probability that a sample of size n=195n=195 is randomly selected with a mean between 149.5 and 151.6. P(149.5 < M < 151.6) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using...