The average number of moves a person make in his/her lifetime is 12 and the standard deviation is 3.5. Assume that the sample is taken from a large population and the correction factor can be ignored

Q: The average American family of four spends $5,000 per year on food prepared at home. Assuming a…

A:

Q: A sample of 16 scores has a standard error of 12. What is the standard deviation of the population…

A: The standard error of the mean is,

Q: The weight of oranges growing in an orchard is normally distributed with a mean weight of 8 oz. and…

A: Given that, μ=8 ozσ=1 Then, P7<x<9 Then, by the empirical rule solve as,…

Q: If a set of data is normally distributed with a mean of 50 and a standard deviation of 5, a z-score…

A:

Q: Claim: The standard deviation of pulse rates of adult males is less than 10 bpm. For a random…

A: According to the provided information, n=131 s2=9.6 σ²=10 The test statistic is defined as:

Q: A normally distributed set of data has been generated where 50% of the data lies below 97 and 70%…

A:

Q: The average standard deviation of the waiting time for a single queue is 4.7 minutes. The average…

A: The hypotheses for the test are given below: Null hypothesis: H0: σ=4.67. Alternative hypothesis:…

Q: A normally distributed variable has a mean of 75 and a standard deviation of 2. What is the z-score…

A: The z-score for 69 is obtained below: From the given information, the value of mean is 75 and…

Q: Scores on a recent national statistics exam were normally distributed with a mean of 80 and standard…

A: Obtain the standard z-score for X equals 89 The standard z-score for X equals 89 is obtained below:…

Q: Assume the annual day care cost per child is normally distributed with a mean of $7000 and a…

A: given: Mean=$7000 SD=$1500

Q: Assume that the heights of women are normally distributed with a mean of 64.9 inches and a standard…

A: Given: Heights of women = X X follows Normal distribution with mean 64.9 inches and standard…

Q: If a one-person household spends an average of $62 per week on groceries, find the maximum and…

A: GivenMean(μ)=62standard deviation(σ)=10

Q: A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the z-score of the value 18.5,…

A: Solution  Given That, A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the…

Q: The waiting time for patients at a local walk-in health clinic follows a normal distribution with a…

A: n = sample size = 50 x̄ = sample mean  = 14.25 Minutes μ = population mean = 15 Minutes σ =…

Q: the average final examination scores produced by the two methods are different if the population…

A: Let sample 1 for method A and sample 2 for method B. Given: n1=40, n2=36x1¯=78, x2¯=74σ1=5, σ2=5

Q: deviation

A: Let X = IQ of an individual. IQ of the ruling species is normally distributed with a mean of 118 and…

Q: Assume that the heights of women are normally distributed with a mean of 65.4 inches and a standard…

A: We have given that  Mean=μ=65.4 Standard deviation=σ=2.7 X~Normal(μ=65.4,σ=2.7)

Q: Suppose the scores of students on an exam are normally distributed with a mean of 454 and a standard…

A:

Q: Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A: It is given that the claim is "The mean pulse rate​ (in beats per​ minute) of adult males is equal…

Q: If the population standard deviation is 10, how large a sample is necessary to have a standard error…

A: The population standard deviation is 10 and the standard error is less than 5 points.

Q: As the size of a sample increases, the standard deviation of the distribution of sample means…

A: Here  Standard deviation of sample mean = σn

Q: A manufacturer claims that the mean weight of its ice cream cartons is 10 ounces with a standard…

A: The random variable is weight of ice cream cartons. The population mean is 10 ounces. The population…

Q: Claim: The standard deviation of pulse rates of adult males is less than   10   bpm. For a random…

A:

Q: A consumer group claims that the mean annual consumption of banana by a person in the Philippines is…

A:

Q: Suppose the mean blood glucose of a population of adults is 162 with a standard deviation of 58.…

A:

Q: Suppose the exam average in a class is 72% with a standard deviation of 3. What proportion of…

A: Given data: Average score = 72 % Standard deviation  = 3% To find: What proportion of students…

Q: The numbers of books checked out daily at a local library are normally distributed with a mean of…

A:

Q: Assume that the test scores for a large class are normally distributed with a mean of 64 and a…

A: Solution-: Given: We find P(the class received a higher score than 78)=?

Q: ​Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A:

Q: The weights of 40 watermelons coming out of a farm are normally distributed with a mean of 6 Kg and…

A: From the given information, Sample size (n) = 40 Ex=6,σx⏞ =1.945 Thus,

Q: In a particular city, the weight of newly born babies is normally distributed with a standard…

A:

Q: According to a recent survey, the salaries of assistant professors have a mean of $41,750 and a…

A:

Q: The heights of male students are normally distributed with a mean of 170 cm and a standard deviation…

A: The heights of male students are normally distributed with a mean of 170 cm and a standard deviation…

Q: The combined math and verbal scores for students taking a national standardized examination for…

A:

Q: The hotel room rate in Miami, Florida is normally distributed with a mean of $286 per night. Assume…

A:

Q: The Drive-thru lane at Chick-fil-a's mean wait time is 7 minutes with a standard deviation of 2…

A: 8. The standard deviation for sampling distribution of means is, σx¯=σn=210=23.16227766=0.6325

Q: Suppose that the volume of sound generated by heavy machinery in a factory is normally distributed,…

A: Consider X be a random variable which follows normal distribution indicates volume of sound…

Q: The weight of male contestants is normally distributed with a mean of 96 kg pounds and a standard…

A:

Q: In a population of 100 male fruit flies, the mean abdomen length is 2.0 mm and the standard…

A: Given  μ=2 and σ=0.3 Use standardization as z=x-μσ

Q: Assume that the heights of women are normally distributed with a mean of 62   inches and a standard…

A: Given data normally distributed with mean of 62 inches and standard deviation of 2.5 inches.

Q: The weights for a baby boy is normally distributed with a mean score of 7lbs and a standard…

A: Question is incomplete. Please upload the complete question. I can do these type of questions with…

Q: Assume the annual day care cost per child is normally distributed with a mean of ​$6000 and a…

A: The detailed solution is as follows below:

Q: In order to have the standard error of the mean be 6, one from a would need to take a sample of size…

A: Given ,standard error=6Standard deviation (σ)=42

Q: When Wyatt commutes to work, the amount of time it takes him to arrive is normally distributed with…

A: The arriving time to work (X) is normally distributed with mean (μ) = 45 minutes and standard…

Q: The number of points scored by éäch at the end of the season is normally distributed with a mean of…

A:

Q: Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A: Suppose, X be the pulse rate​ (in beats per​ minute) of adult males. and X follows Normal…

Q: assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard…

A: X follows a Normal distribution with mean = 5.67 and S.D = 0.07 Then z=(x-mean)/SD = (x-5.67)/0.07…

Q: A set of data items is normally distributed with a mean of 60 and a standard deviation of 9. Convert…

A:

Q: The standard deviation of a sample is 3.0 and the standard error is -16.52, what was the original…

A: