Determine the two values of z such that the middle 58% of the data lie between the two z-values.

Q: tind ten 20. %3D 40

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Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A: For country C n=1024,p hat =0.45 For country D n =1078 ,p hat = 0.41

Q: Find the z-score that cuts off 70% in the body on the right.

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Q: mple in an amusement park showed an average expenditure of $10.30 for the evening. The average…

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Q: Determine the percent of data greater than z=−1.40.

A: Know that  X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

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Q: If p = 30% and n= 300, find X.

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Q: What proportion of z scores lie beteeen -2 and +2 in the height in inches data set? Round your…

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Q: Find p-hat and q- hat for the given data, X=280 and n = 580 Round to three decimals

A: Answer: From the given data, X = 280 n = 580

Q: Heights of NBA All-Star players are normally distributed. 97.5% of players have a height of 85…

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A: A range is an which defines the min. & max. values for any set of nos. of a particular variable.

Q: What z value is associated with the fewest 59%? Select one: a. -0.23 b. 0.22 c. 2.22 d. 0.27 e.…

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Q: Find the percent of 16/20 and 4/20. What are the relationships between the answers?

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Q: Find the​ z-score that has 93.82​% of the​ distribution's area to its left.

A: given probability is P(Z<z0)=0.9382

Q: Find the z-score that cuts off 65% in the body on the left.

A:

Q: Alex is 80th in his class of 320 students. What is his percentile rank in class?

A: Data given p=80, n=320

Q: John calculated r -.44 for a set of n 10 pairs of values that represent the number of absences from…

A: Given that r = -0.44 midterm exam score ( y )   number of absences from class (x)

Q: ate Kobe was 6'6" (or 78 inches).  Suppose the average height of men is 5'9" (or 69") and SD is 3".…

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Q: he percentage of bags weighing between 8.9 and 9.46 ounces is The percentage of bags weighing…

A: According to our guidelines we will solve only first three sub-parts of a question and rest will be…

Q: Find the variance of X X: 73,51,73,182,45,90,111

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Q: Z score of 0.045

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Q: dentify the claim and state Ho and H. The claim is "the proportion of adults in Country C who favor…

A: Given that  Sample sizes for Country C and D n1=1024 , n2= 1078 Level of significance =alpha = 0.09

Q: M= 90 SD= 7.8 What raw score is needed to be in the top 8%?

A: *Mean μ=90SD σ=7.8Top 8%⇒P(X>x)=0.08⇒P(X≤x)=092Corresponding  z-score is obtained as

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

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Q: For the data set, {8, 3, 1, 11, 8, 7}, Q1 3.0 %3D Q3 8.0 ニ IQR = | 8.25

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Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: How did you get the p-value?

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Q: A student measuring how gasoline prices change records the cost of gas at 10 randomly selected…

A: Introduction Data are the nos. that are collected and analyzed to draw meaningful insight from it.

Q: A popular blog reports that 45% of college students log in to Instagram on a daily basis. The Dean…

A: Given  p=45%, n=203, X=106 , level of significance ɑ=0.06 Note: According to Bartleby guidelines…

Q: Find the value of X2 values that separate the middle 80 % from the rest of the distribution for 20…

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Q: Suppose X ∼N (-4,1. Between what xx values does 99.72% of the data lie?

A: Given: X ∼N (-4,1 ) To find: Between what xx values does 99.72% of the data lie?

Q: Find the P - hat and q - hat for the given data, n = 480 and X = 156 Round to three decimals

A: Answer: From the given data, n = 480 X = 156

Q: Find the z-score that cuts off 40% in the tail on the left

A: Our aim is to find the find the z-score that cuts off 40% in the tail on the left

Q: The mode for the data : 22,17,18,25,22,52,27,33 is equal to

A: From the given information,  it is clear that,  The data is, 22, 17, 18, 25, 22, 52, 27, 33 First we…

Q: 0.25 inches. About 95% of the distribution lies between what two values?

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Q: 6. Find the variance if X~N(0, ¿) and 95% of the data are between -7 and 7.

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Q: What’s the formula to turn a Z score to a T score?

A: The  score is the standardized score obtained by using population data or large samples .The  score…

Q: dentify the type of data that would be used when the variable of interest is most-watched TV show

A: Identify the type of data that would be used when the variable of interest is most-watched TV show.…

Q: Find the 5 number summary for the data shown 10 17 40 41 46 52 53 59 65 98 5 number summary: IQR: D

A: Introduction: The middle value in a sorted list of numbers is called the median, and it may be used…