The speaker converts x=250 to z=1.67 using the z score formula. Using the z table it determines p(x>250)=.0475. If you used the normalcdf). What would your answer be taken 5 decimal places?

Q: QuestioTUZ Given the u = 42.2 and o = 1.15, compute the z-score that corresponds to the given score…

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Q: What is the value of P(z < -1.33)? Notes: 1. Write your answer using four decimal places (i.e.…

A: Given : Z be a standard normal variable Z~N(0,1)

Q: While estimating from a sample, you should always try to get a biased B,. Is this correct? O Yes O…

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Q: 18. z = 2.96

A: Given that.   X~N( μ , ?^2 )   μ=30 , ?=4.5  , x= row score    Z-score =( x - μ )/?

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A: The hypotheses are given as follows: Null hypothesis: µ=25.4. Alternative hypothesis: µ&lt;25.4.…

Q: 7. A population of N = 15 scores has EX = 120. What is the population mean?

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Q: 4. More P-values For each of the following, find the P-value using Table C. Then calculate a more…

A: Solution-: Find p-value (a) χ2=4.49,df=5 (b) χ2=4.49,df=1

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Q: 4. Upper 38% 5. Lower 55%

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Q: Using SPSS: Input the following raw scores and then calculate the corresponding z scores. 33, 47,…

A: Procedure: Enter the data in a new SPSS window. Click analyze the go to the descriptive statistics.…

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A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: Suppose that P(A|B) = 0.79, P(A) = 0.43, and P(B) = 0.25. Determine P(B|A). Round your answer to…

A: The formula of P(A|B) is,

Q: find p (z<0.92) refer to the table of x-scores

A: p (z&lt;0.92) =?

Q: A social worker reports that 30% of workers in a factory are below 15 years of age. Of the 120…

A: Let p denotes the population proportion of workers in a factory who are below 15 years of age. Given…

Q: The Flesch Reading Ease Test is a test that ranks the reading level of passages. But WB for the…

A: Given formula for the score F of fetch test is F=206.835-1.015WS-84.6LW                 (i) Where…

Q: = Suppose that P(A | B) = 0.76, P(A) 98.765). 0.47, and P(B) = 0.21. Determine P(BIA). Round your…

A: We have given that,  P(A|B) = 0.76, P(A) = 0.47 and P(B) = 0.21 Then,  We will find P(B|A) = ?

Q: am having trouble understanding z-score. Ex: I am given z.1/2 = z.05 how do I find the z value? In…

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Q: How did it resulted to 0.8749 at letter b? As I review the z-score table, z = -1.15 is equivalent to…

A: Actually you have seen the table for for left tailed side i.e. P(Z &lt; -1.15)  But we have to solve…

Q: follow until degrees of freedom becomes p-value. How did we get to 0.0036?

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Q: 2. A study was made on the amount of converted sugar in a certain process at various temperatures.…

A: Correlation explains the strength of association between the two numerical variable. The t test…

Q: How to get the P-value without using the excel formula?

A: Given that, Sample mean (x̄) = 27.70 Population standard deviation (σ) = 9 Sample size (n) = 36 The…

Q: Use the formula for finding a z-score to determine the missing value in the following table. Round…

A: z-score(z)=-1.66 x=? Mean(μ)=29.10 standard deviation(σ)=3.76

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Q: he home team won 3 out of 4 games. Test   Ho: p = 0.5. There is no home field advantage. Versus…

A: The hypotheses are given below: Null hypothesis: H0: p=0.5. Alternative hypothesis: Ha:p&gt;0.5.…

Q: Given the u = 38.27 and o = 3.56, compute the z- score that corresponds to the given score X =…

A: Given that :  u = 38.27 Standard deviation = 3.56 X = 35.52 By using standard normal distribution  Z…

Q: Determine P(Z > 2.1). Use 6 decimal places in your final answer. Sample Answer: 0.123456

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

Q: How do you find the P-value using ti-84 calculator? df=7 , M&gt;98.6 , n=8 , t=2.428

A: It is given that the t value 2.428 and df is 7.

Q: Calculate the z-score of 4.3 in this population: 4.3   6.5   5.4 (Round your answer to two decimal…

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Q: P(X = 10): P(X 7): P(9 < X < 12):

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Q: P(-9 < x< 16) = 0.4268, find the value of the mean

A: We have given that P(-9 &lt; x &lt; 16) = 0.4268

Q: using the results r(128) = .64, p < .05, what is the most appropriate conclusion? a. r is not…

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Q: Use the formula for finding a z-score to determine the missing value in the following table. Round…

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Q: Use the formula for finding a z-score to determine the missing value in the following table. Round…

A: Z=0.89  X=33.70, mean μ=30.9 , standard deviations σ=?

Q: What percent of scores are below a z-score of z=−1.19? (You can use the z-table)

A: Given: z-score = z=−1.19 We want to find the percent of scores that are below a z-score.