A. In a given normal distribution, the sample mean is 75 and the sample standard deviation is 4. Find the corresponding standard score of the following values: 1. 69 2. 70 3. 85 4. 65

Q: for a population with a mean of u=72 and a standard deviation of σ=10, what is the standard error of…

A: Given,mean(μ)=72standard deviation(σ)=10

Q: Assume the sample size of the population is 20,000  n = 800, p = 0.749 determine the standard…

A: Givenp=0.749n=800Assume the sample size of the population is 20,000

Q: For a normal distribution, given a standard deviation of 3.8 and a mean of 54, what percent lies…

A:

Q: Use any method to calculate the sample mean, median, and standard deviation of the following sample…

A: The objective is to find the sample mean, median and standard deviation of the given sample of…

Q: The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants…

A: Sample points are 9.0,7.3,6.0,8.8,6.8,8.4,6.6. Sample size = n = 7.

Q: Under what conditions can the mean of the sample be treated as a value that is from a population…

A: From the above data  under what conditions can the mean of the sample be treated as a value that is…

Q: Assume a normal distribution of mean = 35 and standard deviation of 5. Answer the following…

A: a) μ= 35 σ=5    P ( x  > 38) = 1- p (x ≤ 38)                              = 1 - p[ (x-μ)/σ  ≤…

Q: You are given the following information for a sample (mean = 40; standard deviation = 10). What is…

A: According to the provided information:

Q: On a normal distribution, four participants obtained the following deviation scores: -5,0,+3,+1.…

A: Given deviation scores of four participants from a normal distribution. The mean for the deviation…

Q: Suppose a normal distribution has a mean of 98 and a standard deviation of 6. What is P(x2 104)? A.…

A: We have given that.   X~N( μ , ?^2 )   μ=98   , ?=6   Z-score =( x - μ )/?

Q: 11. What is the relationship between the standard deviation of the sample mean se( X), for samples…

A: Standard deviation of sample mean is also know as Standard error

Q: A random sample of 8 adults aged 30 years were asked how much they spent on medical costs in the…

A: After enable the MegaStat Add-In into EXCEL, enter the given data in EXCEL sheet.

Q: 8, and the sample standard deviation, s, is found to be 4.6. ...

A:

Q: For any normal distribution, about 68 % of the data lie within one standard deviation of the mean.…

A: The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is a statistical…

Q: In a normal distribution, 99.7% of the data fall within how many standard deviations of the mean? A.…

A: Solution-: In a normal distribution, 99.7% of the data fall within how many standard deviations of…

Q: Given a normal distribution with a standard deviation of 14, what is the mean if 40% of the values…

A: We know that; X~Normal(μ,σ2) ⇒Z=X-μσ~Normal(0,1) Let X be the random variable with a normal…

Q: What is the standard z value corresponding to the sample mean 120 in a distribution with a mass mean…

A: Given: Population mean = 60 Population standard deviation = 4 Observed value = 120

Q: Below is the graph of a normal distribution with mean = standard deviation o = 84 and 2.4

A: Given Information: A graph of a normal distribution with mean μ = 84 and standard deviation σ=2.4 To…

Q: For the Reese's pieces scenario, compute the standard deviation of sample taking if the size of the…

A: Answer - For the Reese's pieces scenario, the size of the samples is n =  200 and the proportion of…

Q: (d) Is it reasonable to assume that the above data come from a population that follows a normal…

A:

Q: For a normal distribution with a mean of μ = 70 and a standard deviation of σ = 10, find the…

A: (a) Obtain the proportion of the population scores greater than 80. The proportion of the population…

Q: Find the Quartile Deviation for the following data : 391, 384, 591, 407, 672, 522, 777, 733, 1490,…

A:

Q: For a normal distribution with a mean of µ = 80 and a standard deviation of σ = 10, what is p(X<95)?…

A:

Q: A hypothetical distribution for a population of test scores has a mean of 60.4, a median of 62.8,…

A: According to the given information in this question We need to find standard deviation of sampling…

Q: Find the following percentiles for the standard normal distribution. a) 79th b) 35th c) 55th

A: Percentile is a number where a certain percentage of scores fall below that number a) 79th…

Q: Consider a test of coordination that has a normal distribution, a mean of 60 and a standard…

A:

Q: Given the following sampling distribution of one mean with a sample size 25, from a normally…

A: From the graph, μx¯=60, and μx¯-σx¯=58 The value of σx¯ is,  μx¯-σx¯=58σx¯= μx¯-58=60-58=2

Q: For a normal distribution with a mean of μ = 90 and a standard deviation of σ = 5, what is p(X>87)?…

A: We have given the following information about the normal distribution Mean = 90 Standard deviation…

Q: Given a standardized normal distrubtion (with a mean of 0 and a standard deviation of 1, as in Table…

A: Standard normal distribution:The standard normal distribution is a special case of normal…

Q: What are the mean and standard deviation of the sampling distribution of the difference in sample…

A:

Q: f the mean age of the managers in company is 52 years with a standard deviation of 2.5 years, what…

A:

Q: What is the standard "z" value corresponding to the sample mean 90 in a distribution with population…

A: Option C is correct. Given

Q: The following data was collected during the Framingham Heart Study. Is there a statistically…

A: Let men and women are the sample1 and sample 2 respectively.

Q: Assume the sample standard deviation is s=10, what do you conclude?

A: here given, sample mean = 87 n = 25 sample standard deviation  = 10

Q: Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(x 93)? O A.…

A:

Q: The variance of a sample of 169 observations equals 576. The standard deviation of the sample equals…

A: given  variance of sample = 576 we know that , sample standard deviation equals square root of…

Q: Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(x≤ 47)? OA.…

A:

Q: Consider the normal distribution of IQs with a mean of 100 and a standard deviation of 16. What…

A:

Q: What percentage of a population typically lands within two standard deviations of the mean under a…

A:

Q: For a population with a mean of μ = 45 and a standard deviation of σ = 10, what is the standard…

A: Obtain the standard error of the distribution of sample means for sample size n=4 scores. The…

Q: For a normal distribution with a population of  μ = 54 and a standard deviation of σ = 12, find the…

A:

Q: Given the following sampling distribution of one mean with a sample size 25, from a normally…

A: From provided information, it is observed that data follows normal distribution. n=25 and mean of…

Q: If a sample of size 16 is selected from a population that follows a normal distribution with a…

A:

Q: Calculate the SEM (standard error of the mean) for the following data: a. Population standard…

A: We have  given that, Population standard deviation (σ) = 15 and sample size (n) = 25 Then,  We will…

Q: For a population with a mean of mean=45 and a standard deviation of 10, what is the standard error…

A:

Q: If you draw a sample of 200 from a normal distribution and using the empirical rule; how many data…

A: Empirical rule: On a normal distribution about 68% of data will be within one standard deviation of…

Q: For a random sample of 25 students from a very large university, the accompanying table shows the…

A: From the provided information, Study time Number of students (f) 0 &lt; 4 3 4 &lt; 8…

Q: Find the sample standard deviation for the given data. Round to the nearest tenth. 2, 6, 15, 9, 11,…

A: Count, N: 10 Sum, Σx: 97 Mean, x̄: 9.7 Variance, s2:  50.2333

Q: What proportion of a normal distribution corresponds to z scores greater than -0.82?   Question 10…

A: According to the given information, we have Z score = -0.82 (Right tailed)