Fr(Gender Male, Education=BA)=

Q: Why is it z > 1.49? Why is it greater than? and why multiply it by 2?

A: Why z>1.49??? Explanation : From the test static formula we got the z value.If we observe in the…

Q: A business analyst believes that the capital utilisation (as measured by inventory turnover) has a…

A: The least square regression line is given by,   ŷ = bx+a Where  b=…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.2…

A: The question is about normal distribution Given : Mean of lifespan of items ( μ ) = 7.2 years Std.…

Q: 4.46 For a random sample of 36 graduate students in economics in a graduate economics program with…

A: Given Let n be the sample size X be the number of graduate mahor in mathematics  n=36, x=8

Q: average height of childen in a school is 43" with a SD = 3.4" Write each answer as a 2-dedcimal…

A: Given that  Mean = 43 , Standard deviation = 3.4

Q: The overhead reach distances of adult females are normally distributed with a mean of 205 cm and a…

A: Given that  Mean = M =  205 , Standard deviation = SD = 8.9

Q: X~ N(54,8). Find the probability that x < 30. I

A: given data normal distributionx~N(54,8)μ = 54σ = 8P(x&lt;30) = ?

Q: The average fuel efficiencies, in miles per gallon, of cars sold in the United States in the years…

A:

Q: The accompanying data set includes volumes (ounces) of a sample of cans of regular Coke. The summary…

A: From the provided information, Sample size (n) = 36 Sample mean (x̄) = 12.193 Sample standard…

Q: X1 300 X2 360 X3 480 X4 X5 528 528 Required find the following: as they related 1 - Arithmetic mean…

A: As per our guidelines we are supposed to answer only 3 sub-parts of any questions so i am solving…

Q: Data on 4500 college graduates show that the mean time required to graduate with a bachelor's degree…

A: given;sample size(n) = 4500mean(x¯)=6.38 yearsstandard deviation(s) =1.39 yearsconfidence level 95%…

Q: Let T be the random variable that models the lifespan of a cellphone battery (in months). It is…

A: Given that, T be the random variable that denotes the lifespan of a cellphone battery. The lifespan…

Q: 2. Educational researchers predict that there may be a relationship between students 'personality…

A: given that, Educational researchers predict that there may be a relationship between students…

Q: Given that PCA) = 1/5, PCB) = 1/3, PCCJ = 2/6, PCAIB) = 1/2 and PCBNC) = 0 a) find PCAIB) B) find…

A: P(A)=1/5 P(B)= 1/3 P(C)= 2/5 P(A|B)=1/2 P(B∩C)=0

Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

A: given data, claim : μ&gt;2.84n=911t= 56.944p-value =?α=0.01we have to find out the p-value and…

Q: "My next-door neighbor has three boys and she's pregnant again. This or is bound to be a girl."…

A: Given statement: My next-door neighbor has three boys and she's pregnant again. This one is bound to…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 98.6 and a standard…

A: GIVEN DATA, NORMAL DISTRIBUTION μ=98.6σ=24.2 WE HAVE TO FIND OUT THE PROBABILITY THAT THE   IQ…

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Q: Can you elaborate or explain more on how Z0.025 = 1.96

A: Given,sample size(n)=32 sample mean=1.5 standard deviation(s)=0.3 α=0.025  Null hypothesis H0:μ=1.4…

Q: 1. The following table contains the probability distribution for the number of traffic accidents…

A: Solution -Given that , the probability distribution of X Number of accident daily (X) P(X=x) 0…

Q: Out of 500 people sampled, 220 preferred Candidate A. Based on this, estimate what proportion of the…

A: We have given thatn = 500x = 220p̂ = x/n = 220/500 = 0.44Significance level (α) = 1 - 0.90 = 0.10…

Q: For a standard normal curve, find the z-score that separates the bottom 70% from the top 30%.

A: Answer:- Given, a standard normal curve,               Find the z-score that separates the bottom…

Q: A leakage test was conducted to determine the effectiveness of a geal designed to keep the inside of…

A: Data given n=5,  3.1,3.3,4.5,2.8,3.5  Construct 95% CI for population mean μ

Q: 4.2.3 4.2.4 What is a 95% prediction interval for the chest girth of a bear with a neck girth of 20…

A: Given that  Sample size n =19 Regression equation Y^ =5.32 + 1.53x Standard error of the fit=0.880…

Q: A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally…

A: Given that  n = 12 ,  ?2 = 1000 ,  ? = √(1,000) = 31.6228

Q: Briefly describe in less than 50 words what each of the subplots in Figures reveal about the data.

A: The objective is to interpret the given plots

Q: This will give you the following. : x = 0.469 S= 0.263 Q1 = = 0.228 Median = 0.489 Q3 = 0.648…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 40 11 A random sample of 144 with a mean of 300 and a standard deviation of 100 is taken from a…

A: Given n=sample size=144, sample mean x̄=300, standard deviations σ=100  Construct 90% CI for…

Q: The family budget is illustrated in the figure to the right. What percent of take-home pay is spent…

A: Given that  Education = 110 Total = 450+400+90+110+70+90+160+160+270 Total = 1800

Q: According to Bayes Theorem, the probability of event A, given that event B has occurred, is as…

A: Given that  P(A) = 1/4 , P(A') = 3/4 , P(B/A) = 1/10 , P(B/A') = 7/10

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: Answer: - Given , X~N(μ, σ)  Mean μ =100, standard deviation (σ) =15. Find  P(X &lt; 85) =?

Q: ANOVA was used to test the outcomes of three drug treatments. Each drug was given to 20 individuals.…

A: Given that  MSE = 16 , Total Sample = n = 60

Q: The manager of High Point Sofa and Chair, a large furniture manufacturer located in North Carolina,…

A: Given data: Worker Job Performance Score Aptitude Test Score Union Membership Abbott 58 5 0…

Q: Complete parts (a) and (b) below. The number of dogs per household in a small town 0 2 Dogs…

A: Given that  Probability mass function of X is  Dogs=X 0 1 2 3 4 5 P(Dogs=X) 0.667 0.204 0.084…

Q: Given the below cumulative distribution function, find the following probabilities. SHOWING WORK IS…

A: given cumulative distribution funciton(cdf);F(x)=0x&lt;20.052≤x&lt;50.155≤x&lt;60.36≤x&lt;818≤x

Q: need help with question (d

A: Given that X~U(a , b) a=0   , b=2

Q: Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 74…

A: Given that  Mean = M = 74 , Standard deviation = SD = 16

Q: sold 457,000 pencils each year. Furthermore, 90% of the time sales have been between 454,000 and…

A: It is given that  Mean, μ = 457000 P( 454000 &lt; X &lt; 460000 ) = 90% = 0.90

Q: As part of a study on how people of different ages use mobile technology, each person in a sample…

A: Given Information: Age 20 to 39: Sample size n1=258 Number of successes x1=168 Age 40 to 49: Sample…

Q: Among college students, the proportion p who say they're interested in their congressional…

A: A) first of all we have to construct null and alternative hypotheses as followswe know that null…

Q: Hi the solution is in

A: Given claim: Test whether the true mean age of the store's shoppers is over 21. Null Hypothesis:…

Q: 3. Each week a garment factory makes one production run of their popular tie-dyed cheesecloth…

A: Given information- We have given the probability distribution for X.   X 5000 6000 8000 10000…

Q: The mean systolic blood pressure of all healthy adults is less than than 125 mm Hg. Sample data: For…

A:

Q: Out of 400 people sampled, 152 received flu vaccinations this year. Based on this, construct a 95%…

A: Given data X = 152 N = 400

Q: The accompanying data set includes volumes (ounces) of a sample of cans of regular Coke. The summary…

A: From the provided information, Sample size (n) = 36 Sample mean (x̄) = 12.193 Sample standard…

Q: Determine the point estimate of the population proportion, the margin of error for the following…

A: Given information: Lower bound =0.259 Upper bound=0.591 n=1200 Point estimate=0.425

Q: To calculate the F statistic    A. The MSE and SST is important  B. The pooled variances is…

A: Given that  MSE = Mean Sum of  Square of Error SST = Sum of Square of Treatment  dfT = Degree of…

Q: Consider the following two independent random variables, X and Y. Random variable X has a mean of 27…

A: Given Information: There are two independent random variables X and Y. X has a mean of 27 and a…

Q: P(A and B) cannot be 0.7. 4.101 Is the calcium intake adequate? In the population of young children…

A:

Q: K Assume that adults have IQ scores that are normally distributed with a mean of 101.5 and a…

A: Given that  Mean = 101.5 , Standard deviation = 20.1