Find the Z scores for which 90% of the distributions area lies between -z and z 1) -1.96 ,1.96 2) -0.99 ,0.99 3) -1.645, 1.645 4) -2.33, 2.33 select the correct answer

Q: Find the margin of error for the given values of​ c, s, and n.   c=0.98​, s=6​, n=13   LOADING...…

A: c=0.98​, s=6​, n=13

Q: Table 1 X 8 9 10 If 14 4 2

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Q: What is the 90th percentile in a t-distribution with 12 degrees of freedom?   a. 1.356 b. 1.796 c.…

A: The kth percentile implies the value, below which k of the total observations lie.

Q: Calculate the mean deviation from the mean for the following data : Size : 2 6 8 10 12 14 16 ency :…

A: We have given that data Mean = sum of all observations/total number of observations.

Q: The grade point averages​ (GPA) for 12 randomly selected college students are shown on the right.…

A: Given: 2.4 3.1 2.5 1.5 0.6 4 2.5 1.2 3.5 0.2 2.3 3.5

Q: The sample variance, ² = Σ(x-x)² n-1 {14, 13, 16, 9, 3, 7, 11, 12, 11, 4} is I of the data

A:

Q: The median is the point of the _____ percentile of distribution?

A: Median is the value that divides entire distribution between two equal parts also the median is the…

Q: G iven:  mean =85    s=12     n =3500 What % of scores are between 97 to 109 ?

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Q: Which of these would be considered a transformed score? a. percentile ranks and t scores b. z scores…

A: Transformed scores are those scores that have been converted from raw scores to meaningful score…

Q: Find the percentile rank of students obtaining the scores:

A:

Q: In a survey, people were asked how many times per year they had their car in the shop for repairs.…

A: From the provided information, Shop Frequency 0 84 1 83 2 35 3 53

Q: The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners…

A:

Q: Which of the following z scores are above the mean? Choose all that apply.     0     1.35…

A: For normal distribution, the mean is equal to 0

Q: The table in the picture shows the frequency distribution of the scores of 50 students in stat. The…

A:

Q: If the shaded area corresponds to z=-0.90, what proportion of the distribution corresponds to z >…

A: We have given that the shaded area correspond to z = -0.90.

Q: Find the values of the 60th, 70th, and 80th percentiles of a normal distribution for which Mean and…

A: Given: mean:  μ=10  standard deviation : σ=10

Q: A boxplot for a set of 60 scores is given below. T 5 6 8 10 11 12 13 DATA

A: Given: Box-Plot

Q: The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners…

A:

Q: ? a. z = 0.91 b. z = -0.91 c. z = 0.43 d. z = -0.43

A: Solution

Q: For Roger Maris 14 homerun seasons of 5,  8,  9,  9,  13,  14,  16,  19,  23,  26,  28,  33,  39,…

A: To find the percentile

Q: Find the margin of error for the given values of c, s, and n. c= 0.99, s = 5, n= 26 Click the icon…

A:

Q: what percent of the total population is found between the mean and the z-score given? z=3.58

A: We have given that. Standard normal.  X~N( 0 , 1 )   μ =0  , ? =1   Z-score =( x - μ )/?   z= 3.58

Q: For the frequency distribution shown, compute : mean , median , mode , mean deviation , sample…

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Q: Calculate the 10th percentile of the data shown 3.4 12.1 14.4 18.3 18.9 21.4 28.9 29.8

A: From the provided information, The total number of observations = 8 The location of 10th percentile…

Q: percer tn X 3.4 12.1 14.4

A: Given that X : 3.4,12.1,14.4,18.3,18.9,21.4,28.9,29.8 Let n denote the number of values in the data…

Q: What value of z marks the bottom 7% of the distribution? a -1.36         b -1.42         c -1.48…

A: We are given that  value of z marks the bottom 7% of the distribution It means that value of level…

Q: The manufacturer of a certain candy states that 15% of the candies are brown, 15% yellow, 25% red,…

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

Q: The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners…

A:

Q: A sample of 8 random families' overall monthly water usage bill (in taka) is as follows: 187 310 280…

A: The data shows the overall monthly water usage bill of 8 random families.

Q: Before the furniture store began its ad campaign, it averaged 213 customers per day. The manager is…

A: D.   Consider that μ defines the population mean number of customers.   Here, it is needed to check…

Q: The number of mistakes made on a typing test is Normally distributed. Five office employees---Kelly,…

A: On observing the z-score, Stanley made the least mistakes on the typed test because his z-score is…

Q: Use the t-tables to determine a p-value or a range of p-values for the following test statistics:…

A: Given Data : n t 20 1.093 15 1.945 10 2.62 25 3.919 We will use the Excel to calculate…

Q: The national distribution of fatal work injuries in a country is shown in the table to the right…

A: The given data is about chi-square test for goodness-of-fit. The total number of fatal work injuries…

Q: Use the Standard Normal Table to determine the z-score that corresponds to the 33rd percentile A)…

A:

Q: Students in an experimental psychology class did research on depression as a sign of stress. A test…

A: We have given a sample of 30 students.43 51 11 90 77 36 64 37 42 72 54 62 36 75 51 72 37 28 38 61 47…

Q: Find the mean of the distribution given below: (2 pts) Table 1. Distribution According to Number of…

A:

Q: The national distribution of fatal work injuries in a country is shown in the table to the right…

A:

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.