What is the pdf of the sum of two random variables each of which each is a gamma distribution with parameters 0 and a. That is X~gamma(0, a) and Y~gamma(0, a). Use moment generating functions to show this.

Q: Calculate Arithmetic mean by direct and shortcut method. CI 50-54 55-59 60-64 65- 69 70- 74 75 - 79 ...

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Q: Еxample Calculate the Harmonic Mean of the following series: Values : 2 10 14 18 Frequency : 4 12 20...

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Q: The random variable X has the probability distribution table shown below. -2 -1 1 2 P(X = x) a a 0.4...

A: We have given that the random variable X has the probability distribution table.

Q: t-tests are widely used in public health research. Please list one scenario that two-sample t-test i...

A: Scenario for using two sample t test  When we wants to know the statistical statistical significance...

Q: as replacements to lactating cows. A farmer kept a record of the number of heifer calves born to eac...

A: Any assumption about the parameter or probability function is known as hypothesis testing. For the g...

Q: Raman appeared in three tests of 20, 50 and 30 marks respectively. He obtained 75% marks in the firs...

A: From the provided information, Raman appeared in three tests of marks 20, 50 and 30 respectively. He...

Q: A population distribution has u = 80 and a = 6. In this distribution a z-score of z = +2.00 identifi...

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Q: Testing: H0:μ=42.795H0:μ=42.795 H1:μ≠42.795H1:μ≠42.795 Your sample consists of 45 subjects, with a...

A: Given Mean=42.795 n=45 X-bar=42.9 S=3.81

Q: Determine the net  price of an article listed  at  $590 less  37.5%, 12.5%, and  8⅓%

A: Given: Gross price=$590 Net price=Gross Price1+ Tax percentage

Q: In a large population, 68% of the people have been vaccinated. If 5 people are randomly selected, wh...

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Q: Suppose that the distribution of typing speed in words per minute (wpm) for experienced typists usin...

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Q: TIME UL FREQUENCY (f) fx m (m - u)2 fx (m -)² TIME LL m 5000.510 20002.041 135.214-70.714 135.214 -4...

A: We are given an ungrouped frequency distribution of 42 observations. Mean, μ=∑i=1nxifi∑i=1nfi Standa...

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

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Q: please solve now

A: The objective is to give appropriate  senarios where applying paired t-test and two sample t-test ar...

Q: Find and share a link to an online research article whose study uses a p-value. First, identify the ...

A: P-value: In statistics, the p-value is the probability of obtaining results at least as extreme as t...

Q: ᴀɴ ᴇxᴘᴇʀɪᴍᴇɴᴛ ɪɴᴠᴏʟᴠᴇꜱ ᴛᴏꜱꜱɪɴɢ ꜰɪᴠᴇ ᴄᴏɪɴꜱ. ʜᴏᴡ ᴍᴀɴʏ ᴇʟᴇᴍᴇɴᴛꜱ ᴀʀᴇ ᴛʜᴇʀᴇ ɪɴ ᴛʜᴇ ᴅᴏᴍᴀɪɴ?

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Q: A binomial probability experiment is conducted with the given parameters. Compute the probability of...

A: According to the given information, we have Sample size, n = 9 Probability, p = 0.6

Q: why is the decline in cohort quality overestimated in cross-sectional data?

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Q: Exit polling is a popular technique used to determine the outcome of an election prior to results be...

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Q: give the correct answer. compute the median value. a. 45.43 b. 47.90 c. 44.50 d. 46.52

A: Given data is Classes Frequency 31 37 6 ? ? 10 45 51 15 ? ? 3 59 65 1 ? ? 0 73 79 1...

Q: 1 Declare variables of the appropriate data type for the following parameters • Number of cars in a ...

A: Number of cars in a parking lot- disrete variable  price of items in a grocery shop - discrete varia...

Q: Under what circumstances would a score that is 15 points above the mean be considered an extreme sco...

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Q: In a recent Super Bowl, a TV network predicted that 52 % of the audience would express an interest i...

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Q: J-ALLEN TECH is offering a television set for $9,000.00 on Hire Purchase. It can be bought by making...

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Q: Suppose that { Y,} is Moving average process with Y, = 0.25(e, + e,-1+e-2+ej_3) %3D where {e,} is ze...

A: Find Mean, variance, auto covariance function and auto correlation function  

Q: The times (in seconds) between fifteen consecutive eruptions of a geyser were as follows: 914, 900, ...

A: As per Bartleby guidelines I can't answer more than three sub parts per post. Please post other ques...

Q: Regression Statistics     Multiple R0.9101558     R Square0.8283837     Adjusted R Square0.7971807  ...

A: The objective is to state the given model is good for data at significance level 5%

Q: Breaking Strength of Steel Cable The average breaking strength of a certain brand of steel cable is ...

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Q: Use the confidence level and sample data to find a confidence interval for estimating the population...

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Q: one from each of the two populations, are selected independently and the weights of all people in th...

A: Introduction: It is required to calculate the 95% confidence interval of the difference between the ...

Q: What would be the standard error in computing a confidence interval for the difference of proportion...

A: It is given that For population 1, sample size n1 = 49, sample proportion = 0.682 For population 2, ...

Q: Two groups of children, one belonging to the professional class, 125 in number, and the other belong...

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Q: The graph of the annual snowfall distribution (in feet) for a particular county is shown below on th...

A: Given Data : Population Mean,μ = 4.7 Population Standard Deviation,σ = 2.7 sample ...

Q: A zoologist spent 70 days studying how often a slow loris is sighted per day in a particular forest....

A: The Chi square χ2 good ness of fit test is used to determine whether the observed distribution is eq...

Q: A person drives for 200 kilometres at a speed of 30 k.p.h. He drives another 200 kilometres at a spe...

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Q: In a certain school district, it was observed that 26% of the students in the element schools were c...

A: Given,n=407x=123α=0.01 Sample proportion(p^)=xnp^=123407=0.3022

Q: If B1, B2, .., B, be a set of exhaustive and mutually exclusive events associated with a random expe...

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Q: You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05.       Ho:μ=61....

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Q: The objective of building a frequency distribution is to find a meaningful pattern in the data, whic...

A: Frequency Distribution: A frequency distribution is a representation, either in a graphical or tabul...

Q: A certain type of thread is manufactured wen a mean tensile strength of 75.3 klograms and a standard...

A: For a derived population with mean (i.e., the mean tensile strength) μ and standard deviation (i.e.,...

Q: Example Calculate standard deviation of the following data : : 10 11 12 13 14 15 16 17 18 f : 2 7 10...

A:       x Frequency (f) f⋅x f⋅x2 10 2 20 200 11 7 77 847 12 10 120 1440 13 12 156 2028 14...

Q: Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny...

A: Given that ; Sample size (n) = 400 Heads got (x) = 122 By using proportion test we solve this proble...

Q: Calculate the Harmonic Mean of the following series : Еxample Values : 2 6 10 14 18 Frequency : 4 12...

A: Given The data is as follows: Values  Frequency  2 4 6 12 10 20 14 9 18 5

Q: The Glover Scholastic Aid Foundation has received a €20 million global government bond portfolio fro...

A: Portfolio A portfolio is a fool of securities, bonds, etc, held for investment to earn a return on ...

Q: The number of bedrooms of homes in a certain community is shown on the table below. Find the cumulat...

A: Given: cumulative distribution for the table Number of Bedrooms Percent 0 5% 1 11% 2 29% ...

Q: You wish to test the following claim (HaHa) at a significance level of α=0.002α=0.002.       Ho:μ=6...

A: Givensignificance level(α)=0.002The null and alternative hypothesis isH0:μ=60.6Ha:μ≠60.6sample size(...

Q: Based on the study below, identify the nature of the study, indpenedent variables, and control varia...

A: The objective is to know nature  of study ,independent variable ,controlled variable 

Q: - Determine the sample and

A: here use basic of population and sample   

Q: In 2006 the mean weight of men was believed to be 86.8 kg. To test for an increase in the weight a r...

A: Given μ=86.8Sample size, n=100Sample mean, x¯=88.7sample sd, s=11.64

Q: vepartment store gives in-service training to its salesmen which is followed by a test. It is consid...

A: Correlation is a quantitative measure of the degree or strength of relationship that may exist betwe...