have a sample with data values of 7, 19, 8, 15, and 11. How do I solove for the z-score for each of the five observations.

Q: In a series of 5 observations, the values of mean and variance are 4.4 and 8.24. If three…

A: It is given that the mean and standard deviation are 4.4 and 8.24.

Q: Two out of 8 students at a local college say that they skip dinner in the evening. Find the mean,…

A: Given that  Success of probability p =2/8=0.25 Number of trials n=20 X~binomial (n,p)

Q: In calculating the mode for the grouped data, f, represents

A: In grouped data, the observations are clustered together into classes. The grouped data basically…

Q: Given a data point X, what does the Z-score tells us about x

A: Formula for the z-score :  Z-score = ( X-μ )/σ  μ = Mean  σ = Standard deviation  Now it is clear  :…

Q: Imagine a researcher wants to determine whether parents differ from each other in their fondness for…

A: Explanation:   It is given that research asks each parent of 50 couples, It means, there are 50…

Q: An adventure company runs two obstacle courses, Fundash and Coolsprint. The designer of the courses…

A: There are two independent samples which are Fun dash runners and Cool sprint runners. We have to…

Q: An occupational therapist (OT) is comparing two different treatments to see which is more effective…

A: we have two groups one consisting of participants A, B, C, D and the other treatment is on…

Q: 2, 5, 9, 13, 17, 202. Find the standard deviation for the above sample data.

A:

Q: Could two samples have the same range but different means? Explain.

A: Yes, Two samples have the same range but different means.

Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…

A:

Q: If the Mean of a data set is 700 and the Variance is 49; Calculate the intervals used for the…

A: Given information, Mean of a data set = 700 Variance = 49 We have to calculate intervals using…

Q: In a population of bats living in a certain region, 30 percent have a wingspan greater than 10…

A:

Q: A sample of 20 program participants exercised for the following number of minutes for 3 days: 1: 0…

A: Given: Sum of frequencies =20 f(0 minutes) = 1 f(10 minutes) = 2 f(15 minutes) = 1 f(20 minutes) = 3…

Q: (a) State the null hypothesis H and the alternative hypothesis H₁. Ho :O H₁ :0 (b) Determine the…

A: Followings are the Explanation of the question Use the two sample Z test    Sample Mean X1=…

Q: Suppose when a data set with 32 values is treated as a "population", the value of the (population)…

A: Given that  Population Variance = 145.2  n = 32

Q: y-Values that would form the summary points of the median-med for the dataset in the table. y 15 16…

A: To find the three median y-values that would form the summary points of the median-median line:…

Q: The following are the number of customers who bought milktea during MGCQ and GCQ. MGCQ: 10, 15, 19,…

A: Answer :

Q: Write a simple research question that can be answered with an independent samples

A: The Independent samples t-test compares the means of two independent groups in order to determine…

Q: Use the following data set: 13, 8, 10, 7, 13, 9, 7, 11, 12, 10, 13 to answer questions The third…

A: From the provided information, The data values are as follow: 13, 8, 10, 7, 13, 9, 7, 11, 12, 10, 13

Q: Consider the following set of data. 12, 13, 13, 15, 16, 17, 18, 20, 20, 20, 22, 26. Compute the…

A:

Q: A sample consists of the following n = 6 scores: -2, 7, 6, 4, 1, 3  Transform the original sample…

A: The question is about z score Given : Data : -2, 7, 6, 4, 1, 3 n = 6   To find : New value for the…

Q: I want to want to estimate the population mean of sleep that I get each night. I have two small kids…

A: From the provided information, Sample size (n) = 30 The mean and standard deviation of this sample…

Q: find 2nd quartile for given data 12,15,6,3,7,9,8,4,14,19,18,16,13,15,14,12,15,5

A:

Q: An adventure company runs two obstacle courses, Fundash and Coolsprint. The designer of the courses…

A:

Q: If 50 and 70 are the two elements of a population data set and their z-scores are -2 and 3,…

A: For  X=50, Y=70  Z score= -2 and 3 for point X and Y

Q: Create two scenarios when you would use an independent samples t-test. Make sure to clearly…

A:

Q: When the distance from the median to the 1st quartile is much greater than the distance from the 3rd…

A: Solution Given the distance from the median to the 1st quartile is much greater than the distance…

Q: If I have a sample of people’s ages, and the IQR is 20, what does this mean?

A: Given:  IQR for sample of people's ages is 20.

Q: Q1. If the following data represent student's grade in the statistics exam: 23, 25, 2, 18, 17, 22,…

A: We have to find median for given data..

Q: An adventure company runs two obstacle courses, Fundash and Coolsprint. The designer of the courses…

A: Since you have posted a question with multiple subparts, we will solve the first 3 sub-parts for…

Q: The time married men with children spend on child care averages  6.9 hours per week. You belong to a…

A: From the provided information,The time married men with children spend on child care averages  6.9…

Q: A math test uses a sample of 16 students with a mean score of 78 and another sample of 21 students…

A: Followings are the Explanation of the question  Use the two sample independent t test Given that,…

Q: If a set of exam scores forms a symmetrical distribution, what can you conclude about the students’…

A: The set of exam scores forms a symmetrical distribution.

Q: Two samples from two different populations are given: (а) Sample 1: 19.8, 12.5, 13.2, 16.9, 18.3,…

A: Let σ12 be the variance of population 1 and σ22 be the variance of population 2. Hypothesis: Null…

Q: The frequency of '14' in the following data: 10, 12, 12, 13, 14, 15, 14, 14, 15 is?

A: Frequency: It is defined as the number of times the values occurred in the data. It is obtained by…

Q: Yessica thought that there was a correlation between the amount of time students slept the evening…

A: From the given information assume that x defines the sleep time the evening before the final exam…

Q: do online students perform differently than students in a traditional classroom? Las semester there…

A: From the provided information, The claim is that there is a difference in the average exam scores…

Q: find 5th quartile for given data  12,15,3,4,12,18,17,5,6,9,20,19,13,4,7,17

A: Solution  Its 50 th quartile not 5th quartile

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.