The formula for a z-score is = *-* True or False True False
Q: Let X: N(3,4) so μ= 3,0=2 Find a) P(X ≤6) b) P(2.0≤X ≤5.4)
A: The question is about normal dist. Given : X ~ N ( 3, 4 ) So, μ = 3 σ = 2 To find : a ) P ( X ≤ 6…
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A: Given Sample=30 Mean=12.2 Standard deviation=2 Significance level=0.01
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A: given data, n=79x¯=7.78S=1.62n=79x=36p^=xn=3679=0.4557α=0.01there evidence that more than 40% of all…
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A: Given that. X~N( μ , ?) μ=47173 , ?=6364 Z-score =( x - μ )/?
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Q: 6. Jasmine wanted to see the world, so she decided to visit Motunui first. After computing for her…
A: Given:- 6) Jasmine wanted to see the world, so she decided to visit Motunui first. After…
Q: n1=473p^1=0.52n2=522p^2=0.45 d) Find a 95% confidence interval for the difference in the…
A: Given that From the provided information, n1=473 p1^=0.52 n2=522 p2^=0.45 We have to find d...…
Q: on In a random sample of 205 people, 142 said that they watched educational television. Find the 99%…
A: given data, n=205x=142p^=xn=142205=0.6927CI=0.99α=1-0.99=0.01Zc:=Zα/2=Z0.01/2= Z0.0050=2.576 [from…
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A: given data newly developed alloyx¯1 =11.13s1 = 3.20n1 = 20common steelx¯2 =12.98s2 = 4.10n2 = 17α =…
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A: given data, n= 6 months x¯=28s=4CI=0.95α=1-0.95=0.05we have to find out the 95% confidence interval…
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A: 5 contains cocaine 15 not contain cocaine __________________________ 20 total packets select 6 at…
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A: Let "A" be the event for Alarm soundsLet "E" be the event for Emergency situation existsLet "E'" be…
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Q: nee udents in a primary school are being tested to see how good their fine motor skills are. The to…
A: Given that. X~N( μ , ?) μ=14 , ?=4.6 Z-score =( x - μ )/?
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A: Given data is1.7,1.4,2.7,2.2,2.3,2.3,2.6,3.0,1.5,2.3significance level(α)=0.05
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A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…
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A: Given Information: Mean, μ=17 Standard deviation, σ=4
Q: A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults,…
A: better same worse total republican 38 104 44 186 democrat 12 87 137 236 none 21 90 118 229…
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A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
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Q: The scores of 50 students are given below. 38 55 48 51 44 64 55 45 36 50 37 40 52 59 60 42 49 40 36…
A: arrange data in accending order :…
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A: Given that X 1 2 3 4 5 P(X=x) 0.2 0.25 0.14 a 0.05
Q: ← Determine (a) the x² test statistic, (b) the degrees of freedom, (c) the critical value using a =…
A: From the given information we have Test statistic (χ20) = 0.24 Degree of freedom (df) = 3 Critical…
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Q: Given the following ranges: 35-75, 50-60, 30-80, 40-70, and 45-65 as well as the following levels of…
A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…
Q: Problem Solving Activity DIRECTIONS: Given the following I.Q. scores of 50 students to a company,…
A: Given data: 100 79 110 93 110 99 101 122 109 109 106 92 95 102 78…
Q: Determine the margin of error for the confidence interval for the proportion: 0.527 < p < 0.799…
A: given data, the confidenece interval 0.527<p<0.799we have to find out the margin of error for…
Q: In a bag of 340 chocolate candies, 35 of them are brown. The candy company claims that 13% of its…
A: Given:- n = 340 p = 0.13 x = 35
Q: Consider the experiment of office arrival. Then S={late, on time, early}. Let the RV Y represent the…
A: Given that: Y P(Y) -10 0.30 2 0.12 12 0.58
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Q: Question Derive the distribution of the mean of a random sam- ple of size n (where n > 30), when the…
A: Given that the population is normally distributed with mean μ and variance σ2. So, X~Nμ,σ2. Let X1,…
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A: Anova is used to measure the mean significance between three or more groups. It is the type of…
Q: Use a computer program or SALT to compute the lower 10th percentile of a t distribution with 58 df.…
A: given data, 10th percenti9le of a t- distrubution, df=58here we use excel function and find out the…
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A: There are three groups given as Job shares, Full-time employees and part-time employees. The sample…
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Q: The average fuel consumption of a car is 12 km per liter (per liter of gasoline used, the car…
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Q: 3. The following data were obtained for the growth of a sheep population introduced into a new…
A: Given Information: Consider the given data: t(year) 1814 1824 1834 1844 1854 1864 P(t) 125 275…
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