An investigator compared two means using the independent sample t-test with 83 degrees of freedom and found an observed value for the  statistic of 2.5.  What is the p-value for this result?

Q: If X and Y are independent RVs with f (x) = e U (x) and f,(y) = 3e¯" U ( y), e-3y find f.(z), if Z =...

A:

Q: The coefficients of variation of wages of male workers and female workers are 55 per cent and 70 per...

A:

Q: Please help me understand the concept of hypothesis testing and all the important factors that shoul...

A: Given: Dynamic Strength 10 2 12 3 8 5 5 4 6 3 7 6 9 5 10 4 11 2 9 1

Q: Example 5. Calculate 5-yearly and 7-yearly moving average of the data given below to obtain trend va...

A:

Q: neight of 54" with a SD = 5.7". Find each to represent infinity in calculations for this in to repre...

A:

Q: Find the value of Mode from the following data : Size of item Frequency 100–110 4 110-120 120-130 20...

A: Solution-: We have following table: Size of item Frequency 100-110 4 110-120 6 120-130 20 ...

Q: Compute the value of the correlation coefficient between time spend for studying and current CGPA an...

A: Solution: Let x be the time spend for studying and y be the current CGPA of student. Formula: Correl...

Q: Y lustration 23. The following tests give the aptitude test scores and productivity indices of 10 wo...

A:

Q: - The population of a country was 300 million in 1951. It became 520 million in 1969. Calculate the ...

A:

Q: Assignment: Suppose X1, X2,..,X, be a random sample from Beta(a,ß) where a is known. Show that the f...

A: * ANSWER :-   

Q: The standard deviation of 15 scores was 5 and the mean was 85. What was the variance.   2. Compute t...

A: Note: Please repost remaining questions as I can author only 1 question as per my policy Given data,...

Q: Use quantitative forecast methods for the data shown below:                PERIOD            DEMAND...

A: Data is given for demand according to periods we have to use quantitative forcast according to menti...

Q: A box contains 2" tickets of which nC, tickets bear the number r (r= 0, 1, 2... n). Two tickets are ...

A:

Q: 2. What is the coresponding area under the standard notmai curve it the z-score is 0.700 A. D.0279 3...

A:

Q: Use the normal distribution to the right to answer the questions.   ​(a) What percent of the scores ...

A:

Q: Given the following, detcrmine the regression equation of (i) x, on x, and .r, (ii) x, on x, and x, ...

A:

Q: Students at a school have a mean height of 54" with a SD 5.7". Find each What number will be used to...

A:

Q: If a radioactive particle is randomly located in a square of unit length, a reasonable model for the...

A:

Q: Mary is playing a game where she flips a coin with probability of head = p. She wins $1 if the coins...

A: *Answer: 

Q: Let x represent the dollar amount spent on supermarket impulse buying in a 10-minute (unplanned) sho...

A: Given that  The mean =46 The standard deviation =9

Q: Activity 1 A. Evaluate the following. )(0.3)°(0.7)2 1. )0.2)*(0.8)3 2. 3. ()(0.4)2(0.8)³

A:

Q: To investigate the association between eye-colour of husband and eye-colour of wife, the following d...

A:

Q: A normal distribution has a mean of 64 and a standard deviation of 7.  Use the standard normal tabl...

A:

Q: The population of a country was 300 million in 1951. It became 520 million in 1969. Calculate the pe...

A: Given that, The population of a country was 300 million in 1951. It became 520 million in 1969.  We ...

Q: . d. determine the cardinality of the sample space; e. determine the possible values of the random v...

A: NOTE: as per policy i have calculated 3 subparts plz repost for remaing Two dice are rolled. Let W b...

Q: A confidence interval for a mean is (−13,14)-13,14. This interval would be wider if A.)The sample m...

A: Given the confidence interval for mean is (-13, 14)  We have to choose the correct option for which ...

Q: From the data given below, compute the values of Q, Q3, D, and P4. Size of Frequency (c f.) Size of ...

A: There are total 457 observations. Sample size, n= 457 First quartile, Q1= (n+1)/4th term = (457+1)/4...

Q: 3. An insurance policy provides a benefit of $1 payable immediately on the death of the last survivo...

A:

Q: distribution's missing probability (3) value. 1 2 4 P(x) 0.07 0.20 0.38 0.13 O 0.21 0.22 0.23 O 0.24...

A: Handwritten solution

Q: Calculate mean deviation (from arithmetic mean) from the following values : 100.500 100.250 100.375 ...

A:

Q: Let Xi, X2, f(x;e)- ee *I c0.00 (x). Find a l00y or percent confidence interval for the the populati...

A:

Q: What is the type I error for x-bar control charts with 3-sigma  control limits and 0.001 probability...

A: @solution:::

Q: Find the characteristic function of the Laplace distribution with pdf f(x) = 2 - 00 <X < o0, Hence f...

A:

Q: 2. Let X be a random sample form N(0, E). Find the complete sufficient statistic for e.

A:

Q: I. Given the set of sample raw scores 10, 12, 16, 18, 19, 21 a. Convert each raw score to its z-tran...

A:

Q: Use technology to construct the confidence intervals for the population variance σ2 and the populati...

A: Given,c=0.95s=39n=15degrees of freedom(df)=n-1df=15-1=14α=1-0.95=0.05α2=0.0251-α2=1-0.025=0.975χL2=χ...

Q: From the data given below, compute the values of Q, Q3, D, and P4. Size of shoes Frequency (e f.) Si...

A:

Q: 3. Set the sample size to n=3 and the number of simulations to Stop: 10. And hit the Run button and ...

A: The sample size represents the number of sample points that are to be taken in one sample while the ...

Q: Use the Central Limit Theorem to find the mean and standard error of the mean of the sampling distri...

A: Given,sample size(n)=24mean(μ)=245standard deviation(σ)=70

Q: A market investigator returns the following data of 10000 people consulted : 8110 liked chocolates, ...

A:

Q: Question 9 of 15 Based on Empirical Rule, how many percent will lie between -3 to +3? Select the cor...

A: Z be the random variable from normal distribution,  Then,  We will check the correct options? 

Q: d) A card is drawn from a standard deck of cards. What is the probability of drawing Queen OR Spade?...

A:

Q: What is the modal group for when they completed studies? How many people are in this group? What per...

A: A percentage is a number or ratio which is expressed in terms of a fraction of 100. A percentage is ...

Q: A frequency distribution is shown below. Complete parts​ (a) and​ (b).   The number of televisions p...

A:

Q: What is the sample size now? What religious category is the mode? What percentage are in this catego...

A: Given information: Valid   Frequency Percent Valid Percent Cumulative Percent   No religion 21 ...

Q: A study of parental empathy for sensitivity cues and baby temperament (higher scores mean more empat...

A: Given Data : For Sample 1 x̄1 = 68.36 n1 = 37 σ1= 11.55 For Sample 2 ...

Q: Dennis, your group leader, decides to experiment on the possible outcomes when a 8-sided die is flip...

A: 8-sided die is flipped (X) and an unfair coin (0.7 Heads) is tossed (Y).  P(H) = 0.7 P(T) = 0.3  

Q: The geometric mean and harmonic mean of two observations are respectively 18 and 10.8. Find the obse...

A:

Q: chickens follow a normal distribution with a mean of ? kg and a standard deviation of ? kg. It is gi...

A: *Answer: 

Q: In a psychology class, 40 students have a mean score of 89.5 on a test. Then 24 more students take t...

A: Given,n1=40 , x¯1=89.5n2=24 , x¯2=78.3