Find the next: 1) classboundaries, class mark.

Q: A] Measurement error in the dependent variable leads to biased OLS estimates? a-Yes, always b No,…

A: A. c It depends on the correlation between the error term and the dependent variable Measurement…

Q: The average national salary is 45,000 (in this example, 45 represents 45,000). I take a sample of 14…

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Q: . Two soft drink dispensing machines should dispense 8 oz of your selection into a cup. The table…

A: Two measures of dispersion variance and range has compared.

Q: 3. You believed that Psychology stadents sieeps more than the average 8 hours recommended. To test…

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Q: In a hypothesis test for the population variance, the alternate hypothesis is the population…

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Q: 3. An integer n : 1<n < 1000 is chosen. Compute the probability that the integer is... a) divisible…

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Q: sume that a normal distribution of data has a mean of 24and a standard deviation of 6. Use the…

A: Given that  The data is normally distributed with Mean (μ) = 24 Standard deviation (σ) = 6  We know…

Q: solve the range and median only of the two tables

A: RANGE calculated as the difference between the lower limit of the minimum interval and upper limit…

Q: Assume that females have pulse rates that are normally distributed with a mean of u= 73.0 beats per…

A: The random variable pulse rate follows normal distribution. We have to find the probability between…

Q: in a certain city, 60% of the heads of household own the house in which they reside, and 80% of the…

A: Computation of probability is based on different rules.

Q: The hypothesis test H0:μ=176.6 H1:μ≠176.6 is to be carried out for a population where ?σ is not…

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Q: 1- In order to determine the proportion of defects in a shipment, 40 parts from it are randomly…

A: Given a sampling method used for the sample selection, we have to write what sampling method is…

Q: Find the mean of the set: {9, 14, 9, 4, 14}

A: Solution:- Given data  9, 14, 9, 4, 14

Q: 13 Five families have three children each. a Find, correct to three decimal places, the probability…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: Researchers want to know which food chain makes people the happiest. Researchers randomly assign…

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Q: Identify the class width, class midpoints, and class boundaries for the given frequency…

A: The question is based on a frequency dist. Given :

Q: 6. Four groups of students are compared according to weight with the Group 1: Mean=45kgs; Standard…

A: Given Information:           No. of groups=04Group 1: Mean=45 kgsstd. deviation=5.3824kgsGroup 2 :…

Q: A regression analysis between sales (in $1,000) and advertising (in $) resulted in the following…

A: Given We have here, regression equation is y^ = 80,000 + 5x

Q: there are four blood types, and not all are equally likely to be in blood banks. 49% if donations…

A:

Q: = .7 and p, = .6. Test Ho: (P, – P2) =0 against Ho: (P, - P2) >0 using. .05 a =

A: Hypothesis testing about the difference between two population proportions is otherwise called…

Q: A game uses a single 6-sided die. To play the game, the die is rolled one time, with the following…

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Q: 2- A radio station conducts a poll about gun control. It invites listeners to call one phone number…

A: Introduction: We need to determine if the poll consists of a random sample.

Q: interested in examining the relationship between happiness (measured using a Likert scale), and…

A: From the given information we find the solution.

Q: 27. Show that for a set of values of a continuous variable the sum of the absolute values of the…

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Q: 4. The mean score of 100 BS Biology students on a 100-item chapter test is 92. midpoint method. What…

A: Midpoint Method  Mean = x¯=x1+x2+...+xnnwhere n - number of observationsx¯=∑fixii∑ifi Deviation…

Q: One sample has SS = 48 and a second sample has SS = 42. Now assume that n = 4 for the first sample…

A: We have given that,  For first sample :- SS1 = 48, n1 = 4 and  SS2 = 42, n2 = 8 Then,  We will find…

Q: A UCLA researcher claims that the life span of mice can be extended by as much as 25% when the…

A: For the given data Sample size ( n ) =?

Q: Each person in a random sample of 234 residents in a major town was asked whether they had ever been…

A:

Q: For a standardized normal distribution, calculate the probabilities below. a. P(z< 1.8) b. P(z 2…

A: Solution-  Z is standard normal variate  a) P(Z&lt;1.8)=0.9641 Using standard normal tablet…

Q: pediatrician has three patients with measles and they are ages 1, 3, and 11. Assume that samples of…

A: Given: The population consists of 1, 3, and 11. The possible samples of size n=2 that can be drawn…

Q: 2. In a particular year in your health jurisdiction, there were 2,675 births. In reviewing their…

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Q: Problem 2 rove the following: a. If O1 is an unbiased estimator for 0, and W is a zero me Ô2 = Ô1 +…

A: Solution

Q: Compute Var(y3) for the following model, where e ~ wn(0,0.01), i.e., a white noise process with mean…

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Q: Fill in the blank, A histogram has the same shape and horizontal scale as a histogram, but the…

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Q: 10. The SAT is one of two major college aptitude tests that is taken. The mean composite score is…

A: The question is based on a normal dist. Given : The mean composite score ( μ ) = 1060 The std.…

Q: (a) (i) Bats calls can range from 9 kHz to 200 kHz. What is the maximum sampling interval, T, that…

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Q: Suppose in a recent poll of 1250 randomly selected Californians who took vacations, 132 of them…

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Q: Researchers want to know which food chain makes people the happiest. Researchers randomly assign…

A: For the given data, we need to compute the F-statistic.

Q: A marketing company has randomly surveyed 190 men who watch professional sports. The men were…

A: For the given data Is a survey participants preference for the NBA  independent of having a college…

Q: In two sets of variables X and Y with 50 observations each, the following data were observed X = 10,…

A: Given: Number of observations is 50 Coefficient of correlation r=0.3 Mean of X is X¯=10 Standard…

Q: A SAMPLE SIZE OF 36 WAS DRAWN AND ITS MEAN WAS FOUND TO BE 80. TEST WHETHER THIS SAMPLE COULD HAVE…

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Q: Given Hx = 0.10, determine é:10 (10 – year temporary expectation of life). %3D

A: From the given information, μx=0.10   Formula: e°x:n¯|=∫0npxdtt           =∫0ne-μxt dt

Q: If a binomial distribution applies with a sample size of n= 20, find the values below. a. The…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: The covariance-variance matrix of a set of observations, Exx, is a symmetric matrix. The covariance…

A: Given that the covariance-variance matrix of a set of observations, ΣXX, is a symmetric matrix.

Q: Different groups of consumers are intercepted in shopping malls at the end of every month, for a…

A: Panel data is also known as longitudinal data. It is the type of data that is collected over a…

Q: 2- A radio station conducts a poll about gun control. It invites listeners to call one phone number…

A: Random sampling: A simple random sample of size n is collected from a large population where each…

Q: A sari-sari store is selling 4 brands of soft drinks. The owner wants to find out if there is a…

A: For the given data Perform Anova: Single Factor

Q: Scenario: Suppose participants complete an experiment where ads are presented subliminally during a…

A: Here's we can see that men is independent variable and women is dependent variable.

Q: Different groups of consumers are intercepted in shopping malls at the end of every month, for a…

A: Panel data Panel data is also referred to as longitudinal data. It contains observations across…

Q: 4. The mean score of 100 BS Biology students on a 100-item chapter test is 92.28 using the midpoint…

A: The mean calculation for frequency distribution can be done with the following two methods  1.…