z = 1.91

Q: Consider the following probability distribution of the random variable . f(x) 1 0.35 0.14 0.10 7 0.4...

A: We want to find mean and variance

Q: sychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The mot...

A: Given : Claim : The children have higher IQs on average. 

Q: magnets have a greater mean reduction in pain than those given a sham treatment. State the claim, n...

A:

Q: Given 25 patients with known cancer, how many will have negative test? Given 50 patients in good hea...

A: Here AS PER POLICY I HAVE CALCULATED 3 SUBPARTS PLZ REPOST FOR REMAINING PARTS  Here given 80% sensi...

Q: To test whether the mean time needed to mix a batch of material is the same for machines produced by...

A:

Q: Assume the purchase price of a car was $38 000.Using the reducing balance method, the value of the c...

A: # Given: purchase price of a car is $38000 vakue of car price depreciated by 6% each year  then to f...

Q: Below you are given the first five values of a quarterly time series of sales. Year Quarter Time Ser...

A: Ans : From the above given data we found, 

Q: Modern laser equipment has been used to measure the distance between two points. Each measurement va...

A:

Q: Consider the following pdf: fr (X) = = 0.06X+0.05 X = 0, 1.5, 2, 4, 5 Since it is a discrete pdf, ca...

A:

Q: A variable contains five categories. It is expected that data are uniformly distributed across these...

A: It is been asked to find the degrees of freedom of given test using given information.

Q: Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2. Use the...

A: Given data : x1= 57.0 n1= 140 x2= 50.0 n2= 130

Q: Suppose a candy connoisseur opened a random bag of candy and found that 15 of the 62 candies were re...

A: Givenx=15n=62p^=xn=1562=0.242Confidence interval(c)=95%

Q: If the mean of an odd number of consecutive integers is zero, what is the sum of the three middle in...

A: From the given information we find the solution.

Q: (b) Use simple linear regression analysis to find the parameters for the line that minimizes MSE for...

A: CALCULATION for regression equation:-   t yt t^2 yt^2 t*yt 1 132 1 17424 132 2 110 4 12100 220 3 101...

Q: included can you say whether the difference is significant? What type of statists would be helpful f...

A: Recombinant DNA technology alters the genetic material by inserting parts of DNA from various source...

Q: (d) Compare the three-week moving average forecast with the exponential smoothing forecast using a =...

A: Ans : From the above given data This is the data we have been provided. From that data your answers...

Q: The following are the hypotheses for a test of the claim that college graduation statue and cola pre...

A: There are two categorical variables which are college graduation status and cola preference. This is...

Q: Using Laplace transform, sole cỳ"+y= cos x, where y (0) = 0 = y'(0)

A:

Q: Given the data D={10,11,12,13,14, x} with mean 12. Find the midrange of D if D is unimodal. 11 12 11...

A:

Q: Find the range for the group of data items. 11, 12, 13, 14, 15

A: We have given that data  11, 12, 13, 14, 15 I want to find Range Formula used  Range = max - min

Q: The liquid chlorine added to swimming pools to combat algae has a relatively short shelf life before...

A: Given : Claim : Holdlonger increased the shelf life of the chlorine. 

Q: The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed,...

A: We have given that the null and alternative hypotheses are: H0: p = 0.2 H1: p < 0.2

Q: Dased on he resuits ording to the report, the mean monthly cell phone bill was $49.28 three years ag...

A:

Q: Hummingbirds visit a feeder at a rate of 0.75 visits per hour. Let X be the number of hummingbird vi...

A:

Q: Suppose the price to sell some commodity is a linear function of output. If prices are 650691 R.O fo...

A: a. We have two points on the linear function (619, 650691) and (929, 87069). The slope of a straight...

Q: There are 7 students performing in the talent show, 5 of whom will perform a monologue. If 4 student...

A:

Q: Pearson Correlation .010 Age Sig. (2-tailed) 924 100 100 Pearson Correlation .010 Math grade Sig. (2...

A: Given : Claim : There is a significant relationship between the respondents' Socio-Demographic Chara...

Q: To test Ho: H = 100 versus H,: u# 100, a simple random sample size of n= 25 is obtained from a popul...

A:

Q: The size of the left upper chamber of the heart is one measure of cardiovascular health. When the up...

A: Solution-: Let, X= The healthy children have left atrial diameter  Given: μ=26.7mm,σ=4.4mm ∴X→ N(μ=2...

Q: Suppose a random variable X has the following pdf.   The random variable X has a Beta distribution...

A:

Q: Up Down Up -C, v 0,0 —с, —с Down V, —с

A: Here is the answer 

Q: To test Ho.-100 Versus Hi mple fandom sample size o ned irom population hat is khIown to be nomaily ...

A: Given: n= 25.0 ,x̄= 104.3 ,s= 9.0 µ= 100.0 ,significance level(∝)= 0.01 ,degree of freedom= 24.0 de...

Q: The figure below shows the binomial distribution for 10 trials and probability of 0.5. (This is the ...

A:

Q: In a normal distribution, approximately what percent of data items fall within 1 standard deviation ...

A: Empirical rules:1) P(μ-σ<X<μ+σ)=68%2) P(μ-2σ<X<μ+2σ)=95%3)P(μ-3σ<X<μ+3σ)=99.7%

Q: Consider the random variable L, the length of time it takes to hear a case in a small claims court. ...

A: Given dataconsider the random variable L, the length of timeit takes to hear a case in a small claim...

Q: Philippine Airlines finds that 60% of the 120 flights are on time in flying southbound. Of 170 east-...

A: Given: Population proportion (p) = 0.60 Number of flights (n) = 170 Number of flights that are on ti...

Q: ere collected on calorie content in ales and IPAS and is summarized in the table. e Ale IPA 51 11 mp...

A: We have given that  Sample size n1= 51 , n2= 11 Sample means xbar1 = 172.9 , xbar2 = 230.8  

Q: A simple random sample of size n= 200 drivers with a valid driver's license is asked if they drive a...

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test ...

Q: 1(a) If u=min(3x,y) and I=250 and py=5, what are the income and substitution effects of an decrease ...

A:

Q: 1. An experiment was installed to test 4 rates of Zn on cabbage. The experiment was laid out in a ra...

A: Given: Treatment kg Zn/ha      Block                                     I        II           III  ...

Q: Suppose it is known that 80% people own a cellphone. If a random sample of 100 people were surveyed,...

A:

Q: With Degrees of freedom = 25, calculate the value of x2 such that the area from x2 to the right is 0...

A:

Q: Suppose a random variable Y has a Weibull distribution with parameters α = 4 and β = 7.865. Determi...

A: Given information: Given that the random variable Y has a Weibull distribution with parameters α= 4 ...

Q: 29. BELOW IS THE DATA OF LEADING CASES OF CORONAVIRUS COVID-19 IN THE PHILIPPINES AS OF MARCH 31, 20...

A:

Q: A purchasing agent needs to find the most durable aluminum at the best possible price. To compare du...

A: Formula : Test statistic :    

Q: Bluereef real es tate agent wants to form a relationship between the prices of houses, how many bedr...

A: Ans :

Q: Find the critical tt-value for a 90% confidence interval using a t-distribution with 15 degrees of f...

A:

Q: An adventure company runs two obstacle courses, Fundash and Coolsprint, with similar designs. Since ...

A: From the provided information,

Q: Compute the probability of obtaining the following sequence of coin flips: THTHTH. Round to three de...

A:

Q: The table below lists the number of games played in a yearly best-of-seven baseball championship ser...

A: Note: As per my policy i can answer only one question. kindly repost the another question Games play...