Q.la Write the pdf of a normal random variable and a standard normal random variable. If the annual rainfall in Cape Town is normally distributed with mean 20.2 inches and standard deviation 3 6 inches. Find the probability that the sum of the next five years' rainfall exceeds 110 inches. Q.1b If Cov(Xm, Xn) = mn - (m+n), find Cov(X₁ + X2, X3 + X₁).

Q: 5. The following data are direct solar (watts/m2) at intensity measurements a location in southern…

A: The question is about grouped frequency distribution Given : Starting first class interval = 450 -…

Q: All of the following graphs can be used for categorical variables except? Dot plot Bar Graph Pie…

A: The objective is to identify the type of chart that cannot be used for categorical variables.

Q: You wish to test the following claim (H) at a significance level of a = 0.002. Ho: P₁ = P2 Ha: P1 P2…

A: From the sample information, it is inferred that: For population-1:n1 (sample size)=799, p^1 (sample…

Q: QUESTION 23 "Laura has submitted five tickets into a raffle. There are a total of 30 tickets…

A: Probability is the measure of likelihood of occurrence. It determine by dividing the number of…

Q: Calculate the mean from the following sample data set: 8 10 7 14 53 22 5 5 5 22

A: From the provided information, The data values are as follow: 8, 10, 7, 14, 53, 22, 5, 5, 5, 22…

Q: The following data were obtained for a sample of 10 persons from a height Example and weight…

A: From the provided information, Sample size (n) = 10 ∑xi = 700, ∑yi = 1550, ∑xi2 = 49120, ∑yi2 =…

Q: Want to explain these outputs?

A: Anova is the measure used to determine mean significance. It compare three or more groups. If there…

Q: In the agricultural department, a test was conducted on a new variety of corn. The new corn was…

A: Given: n = 50 Xi = 50,   i = 1, 2, 3, ...50 Standard deviation σ = 10 Formula Used: Sample mean X =…

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A: Given data: Year(t) $1000's Revenue(r) 4.0 169.00 5.0 214.00 6.0 243.00 7.0 301.00 8.0…

Q: Test statistic with p value also

A: Given that  n = 818 , X = 517  Level of significance = 0.05

Q: A sample of midterm grades for five students showed the following results: 69, 62, 79, 87, 73. Which…

A: Given: Midterm grades for five students are: 69, 62, 79, 87, 73. The objective is to identify the…

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A: Given that,

Q: The arithmetic mean height of 50 students of a college is 5'8". The height of 30 of these is given…

A:

Q: Find the MGF of the binomial distribution ()ra- Use it to show that the mean is p and the variance…

A:

Q: If posts are 5 feet apart, how many posts are needed for 45 feet of straight-line fence?

A: Given the information that the posts are spaced 5 feet apart. Since the size of the post was not…

Q: QUESTION 55 "A set of X and Y scores has MX = 13.25, MY = 309.39, SSX = 5476.69, and SP = 5962.02.…

A: Regression line has two types of regressors. It has two types of variables, they are independent and…

Q: The following are the GPAs of 18 r/s SCC students: 1.3, 1.5, 1.7, 2.2, 2.5, 2.6, 2.6, 2.6, 2.6, 2.8,…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: A researcher wishes to examine the relationship between years of schooling completed and the number…

A: In a simple linear regression model say, y^=a+bx, the interpretation of the slope is as follows: For…

Q: TON 44 "A clinical psychologist wants to compare the efficacy of medication versus Cognitive…

A:

Q: A geneticist, in assessing data that fell into two phenotypicclasses, observed values of 250:150. He…

A: Given: Observed values     Expected ratio Class Observed a) b) 1 250 3 1 2 150 1 1

Q: survey of 37 people conducted to compare their self-reported neight height. The difference between…

A: Given data,n = 37 people, was compare there self reported height to there actual height testing the…

Q: Suppose that Flinders students are surveyed about whether they like statistics. At Bedford Park,…

A:

Q: If the joint probability density function of two continuous random variables X and Y is given by…

A: Given Information: The joint probability density function of two continuous variables X and Y is:…

Q: A ball is drawn randomly from a jar that contains 2 red balls, 4 white balls, and 9 yellow balls.…

A: Given: A jar contains 2 red balls, 4 white balls and 9 yellow balls.

Q: You are conducting a test of the claim that the row variable and the column variable are dependent…

A: The following information has been given: Observed Frequencies   X Y Z Total A 3 39 24 66 B…

Q: Identify the lower class limits, upper class limits, class width, class midpoints, and class…

A: age when award was won frequency 20-21 27 22-23 36 24-25 16 26-27 2 28-29 6 30-31 1…

Q: Number of Cars Sold in

A: A bar graph is a particular type of data visualization that uses rectangular bars with each bar's…

Q: Assume the random variable has a binomial distribution with the given probability of obtaining a…

A: Solution is given below

Q: Two classmates are working together to design an experiment to test how long it takes participants…

A: Concept: Design of experiment is a feasible method to study affect of several variables all in one

Q: Find the following t-values in Table 4 of Appendix I or using SALT. (Round your answers to three…

A: As per company guidelines I solved first three subparts of this question .

Q: dents handed out 40 survey questionaires for 75.3% of the population. Determine the margin of error…

A: Given data,n=40p=75.3% =0.753Determine the margin of error of their conducted survey?

Q: Consider the following Model: y = Bo + B₁x₁ + B₂X₂ + ... + BxXx + ε A) With reference to this model,…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The last digit of the heights of 42 statistics students were obtained as part of an experiment…

A: The question is about graphical representation of data Given :   To find : To draw a histogram and…

Q: he doctor has finally figured out what is wrong with you and prescribes a medicine that will help…

A: here  the bottle has 100 mg per 15 ml

Q: A company wishes to conduct a survey in the shortest length of time possible but still get a high…

A: Ans=a ) telephone survey Shorter survey were reliable and produced higher response and completion…

Q: Want to explain these outputs?

A: Assumption of normality is tested before the analysis. It can be done using various methods. Some of…

Q: You are conducting a test of the claim that the row variable and the column variable are dependent…

A: The chi-square analysis is used to examine the link between two or more qualitative factors. In the…

Q: The following are the ratings of males by females in an experiment involving speed dating. Use the…

A: Given data is3.0,3.0,3.5,4.5,5.5,5.5,6.0,6.0,6.0,6.0,6.0,6.5,6.5,6.5,6.5,6.5,7.5,8.5,9.5,10.0Arrange…

Q: study on a sample of 60 pregnancies produced a mean of 265 days and a standard deviation of 15.5…

A: Given that  Sample size = 60 Mean = 265 , Sample standard deviation = 15.5

Q: Use the Student_Data which consists of 200 MBA students at Whatsamattu U. It includes variables…

A: Given data of 100 MBA male Students 101 0 No Major Unemployed 53 3.01 3.15 6 0 102 0…

Q: 100 6.26 The Daily Show: A 2010 Pew Research foundation poll indicates that among 1,099 college…

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A: Given data: A 3 2 5 6 3 1 B 5 8 9 6 2 5 C 1 3 4 2 7 3

Q: Determine whether or not the distribution is a discreet possibility distribution and select the…

A: Given data is x 1 6 7 P(X=x) 0.51 0.67 0.35

Q: Use z scores to compare the given values. Based on sample data, newborn males have weights with a…

A: Given that, Based on sample data, newborn males have weights with a mean of 3282.9 g and a standard…

Q: ou are conducting a test of the claim that the row variable and the column variable are dependent in…

A: Given data:     X Y Z Total A 3 39 24 66 B 17 53 32 102 Total 20 92 56 168

Q: E [X] = 4 and In X follows a normal distribution with a variance of 3. Express the value of E [min…

A: Hint: we know that min(x,y)=x, if X<yy, if X>y we will use the same concept to find…

Q: Calculate the mode of the following sample data set: 8 10 7 14 53 22 5 5 5 22

A: Given data is 8,10,7,14,53,22,5,5,5,22

Q: Listed below are the amounts (dollars) it costs for marriage proposal packages at different baseball…

A: The observed sample values are given as: 37, 50, 50, 65, 70, 80, 90, 120, 190, 208, 270, 350, 450,…

Q: in a frequency distribution the coefficient of skewed ness based on quartiles is 0.6. it the sum of…

A:

Q: Average prices (in dollars) were recorded for three types of beverage across all 8 major Australian…

A: Solution:   Given Total beverages = 24 Total beverages whose cost is more than $3.5 = 18