A sample of 36 is taken from a population that is normally distributed with mean 15 and standard deviation 3. What is the probability that the sample mean will be more than 15.97? O A. 0.9738 O B. 0.0262 O C. 0.6457 O D. 0.3732 O E. 0.6268

Q: The probability that a person catches a cold during the cold and flu season is 0.4. Assume that 10…

A: According to the given information, we have Probability, p = 0.4 Sample size, n = 10

Q: Suppose the annual rainfall in the Southern California (in inches) is normally distributed with mean…

A: The mean is 10 and the variance is 25. The standard deviation is √variance=√25=5.

Q: Assume that the heights of men are normally distributed with a mean of 71.3 inches and a standard…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be…

A: Given Information: Mean μ=80 Standard deviation σ=7 Sample size n=49

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: Answer Sample size [n] =50Mean =196Standard deviation =22

Q: A population has a mean of 53 and a standard deviation of 21. A sample of 49 observations will be…

A: We have to find given probability.

Q: A population has a mean of 180 and a standard deviation of 36. A sample of 81 observations will be…

A: The population mean is 180. The population standard deviation is 36. The sample size is 81. We have…

Q: A population has a mean of 300 and a standard deviation of 18. A sample of 144 observations will be…

A: Let X be a variable, for a specified sample size (n), the Z score is Z=X-μσnwhere μ=population mean…

Q: A normal population has a mean of of 60 and standard deviation of 12. A random sample of 9 is…

A: Using normal distribution we find the given probability.

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: Let x be the number of pounds of red meat a person consumes each year which follows normal…

Q: At an airline company, according to the records, the mean age of pilots is 36.2 years, and the…

A:

Q: The acidity of human​ blood, measured on a pH​ scale, is a normal random variable with a mean of 7.4…

A:

Q: A normal population has a mean of of 60 and standard deviation of 12. A random sample of 9 is…

A: Given : Mean = μ = 60 Sample size = n = 9 Standard deviation = σ = 12

Q: The WAIS is an IQ test. Scores on the WAIS for the 20-34 age group are normally distributed with a…

A: It is given that the mean and standard deviation for the age group of 60-64 is 90 and standard…

Q: O A. 0.8615 OB. 0.8819 O C. 0.0062 OD. 0.9938

A: Let X be the random variable from normal distribution with mean (μ) = 124, standard deviation (σ) =…

Q: Suppose that heights of 10-year-old boys in the US vary according to a normal distribution with mean…

A: The objective of this question is to find the probability that the height of a randomly selected…

Q: A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be…

A:

Q: A population has a mean of 60 and a standard deviation of 18. A sample of 81 observations will be…

A:

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: Solution-: Given: μ=196,σ=22,n=50 Let, X= be the random variable We want to find P(the mean of…

Q: The amount of time a marker takes to mark a single Advanced Business Statistics exam script has a…

A:

Q: The average score of all golfers for a particular course has a mean of 66 and a standard deviation…

A: Given: n= 64 The standard error can be calculated as: σX=σn=464=0.5 The z score for x = 67 can be…

Q: The average score of all golfers for a particular course has a mean of 72 and a standard deviation…

A: We want to find the probability by using standard normal distribution table

Q: A normal population has a mean of of 60 and standard deviation of 12. A random sample of 9 is…

A: given ,  mean , μ =60 standard deviation , σ=12 sample size , n = 9

Q: A population has a mean of 180 and a standard deviation of 24. A sample of 64 observations will be…

A: Given Information: Mean μ=180 Standard deviation σ=24 Sample size n=64

Q: In a population of statistics students it was found that the mean score on the final is 150 with a…

A:

Q: Assume that blood pressure readings are normally distributed with a mean of 124 and a standard…

A: Sample size [n] =64Mean =124Standard deviation =6.4