Can you help me with d and e

Q: Cigarette Taxes The increases (in cents) in cigarette taxes for 14 states in a 6-month period are 51...

A: We have given that,  The data set is,  51, 60, 12, 20, 30, 40, 32, 34, 42, 45, 50, 40, 18, 31 Then, ...

Q: If 52% of the people at a certain conference are doctors, 44% are women, and 67% are doctors or wome...

A: The union probability for any two events A and B is defined as P(A or B) = P(A)  + P(B) – P(A and B)...

Q: Stress at work: In a poll about work, 60% of respondents sald that their jobs were sometimes or alwa...

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Q: [For questions 8, 9, and 10] - The old Nokia 3310 battery lasts 31 hours on standby. Nokia produces ...

A:

Q: The variable X has a normal distribution with mean u = 100 and standard deviation a = 8. The variabl...

A: Given: for Variable Xμ=100σ=8For variable Yμ=85σ=6X and Y independent

Q: Janice is interested in determining whether the average man wants to express his worries to his wife...

A: Given Information: Consider the data that involves 30 men who made it to their 15th wedding annivers...

Q: Example 6-3. In four tosses of a coin, let X be the number of heads. Tabulate the 16 possible outcom...

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Q: Problem 3 An electric company is studying the relationship between the energy consumption (in thousa...

A: The following data is given: Number of rooms 13 9 14 6 10 7 11 10 5 7 Energy Consumption 9 7 11...

Q: Find the margin of error for the given values of c, s, and n. c= 0.80, s = 4, n= 6 Click the icon to...

A: Solution-: Given: c=0.80,s=4,n=6 We find margin of error(E) =?

Q: Consider the following sets: U = {2, 3, 4, 6, 8, 9, 10, 12, 14, %3D 15} |А%3D {3, 6, 9, 12, 15} В %3...

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Q: When you fail to reject the null hypothesis for a two-way chi-square test, you can conclude that: Gr...

A: When you fail to reject the null hypothesis for a two-way chi-square test, you can conclude that:  

Q: In a random sample of n = 500 drivers, 115 individuals say that they never wear a seatbelt when driv...

A: The random variable X follows binomial distribution. The sample size is 500. The number of successes...

Q: 1. The positivity rate in a certain group is 3.5%. Determine the probability that a batch will test ...

A: The positivity rate in a certain group (p) is 0.035.

Q: 1) Is the amount of weight gained by rats who eat only junk food for four weeks ratio or interval da...

A: Solution-: 1) Is the amount of weight gained by rats who eat only junk food for four weeks ratio or ...

Q: The cost of a meal for a sample of eight customers was recorded. The results (in Rands) were as foll...

A: Given : The cost of a meal for a sample of eight customers was recorded Sample 130.11 129.85...

Q: Are there outliers in duration of hospital?  Are there outliers in age? Find the 20th percentile in ...

A: First quartile for duration of the hospital, Q1= (n+1)/4th term Data in ascending order, 3 3 3 4 4 5...

Q: A recent study on the effects of Tamiflu looked into whether the antiviral medication can reduce the...

A: Denote μ1, μ2 as the population average flu durations of individuals with placebo (1st population) a...

Q: Because of the relatively high interest rates, most consumers attempt to pay off their credit card b...

A: Given,mean(μ)=27standard deviation(σ)=8

Q: Given a normal distribution with μ=53 and σ=3​, complete parts​ (a) through​ (d). A) What is the pr...

A: Given a normal distribution with μ=53 and σ=3​

Q: The following binary data represent the students taking a statistics course in a major university, w...

A: Given Information: Consider p as the proportion of students represented by "1" for students who are ...

Q: What assumption(s) must hold true to use the normal distribution to make a confidence interval for t...

A: Assume that p as the true proportion and n is the sample size.

Q: 2. The average test score in a certain statistics class was 74 with a standard deviation of 8. There...

A: As per guidelines expert have to answer first question three subparts only dear student please uploa...

Q: Which one is discrete?

A: Descrete random variable which takes only countable value   

Q: 8. Which of the following measures of central tendencies is most appropriate if the data can be meas...

A: Mean: The arithmetic mean (also called the mean) is the most commonly used measure of central tenden...

Q: For each value of z*, find the cumulative probability P(Ż s z*). (Round your answers to four decimal...

A: Required probability is P(Z≤1.96)

Q: Among a student group 51% use Google Chrome, 20% Internet Explorer, 10% Firefox, 5% Mozilla, and the...

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Q: Which figure do you think logically belongs in the missing square? Select one: O a. +++

A: We see the sticks vertically then for vertical sticks yellow, blue and white colour are used in ever...

Q: xample 2: Prove that for a random sample of size n, X1,X2,.... ,X,n taken from an infinite populatio...

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Q: 19. In testing a lethal concentration of a chemical found in polluted water, researchers have determ...

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Q: Ieal Tegiessi equatio ior these data. GMAT 310 290 260 270 340 260 300 310 GPA 3.7 3.1 3.2 3.2 3.8 2...

A: We have given that data  I want to find.  Linear Regression equation.  Y^= n + m*x

Q: make per day. They collected the following data: Number of Workers (X) Number of Cars (Y) 8. 4 10 a)...

A: Given : X Y 2 3 3 8 4 10

Q: iv. Calculate the missing value ** and use tables to approximate the value of ***. v. Using a 1% lev...

A: iv Consider that μ is the true population average marks of the students.

Q: Suppose you physically simulate the random process of rolling a single die. (a) After 10 rolls of th...

A: Given information: Suppose we simulate the random process of rolling a single die. a) After 10 rolls...

Q: Property 10. If X and Y are independent random variables, then E [h (X ). k (Y)] = E [h (X)] E [k (Y...

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Q: what is homogeneity variance ? how does it influence students t

A: Given information: It is required to state homogeneity of variance.

Q: 1. We estimated the two regression models using the BWGHT.DTA data; you should be able to open the d...

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts fo...

Q: on the exam? (c) How many students scored at most 90? (d) What percentage of students scored at leas...

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Q: A variable is normally distributed with mean 10 and standard deviation 2. a. Find the percentage of ...

A: Let X is the variable which follows normal distribution, X~N(10,2) It is known that,  Z score= (X-μ)...

Q: Monthly rent was determined for each apartment in a random sample of 100 apartments. The sample mean...

A: Given : 95% confidence interval is ($815, $825).

Q: Given the following data, find the diameter that represents the 35th percentile. Diameters of Golf ...

A: Data in ascending order, 1.31 1.33 1.33 1.35 1.39 1.41 1.42 1.43 1.43 1.52 1.52 1.57 1.58 1.59 1.67

Q: The newly elected president needs to decide the remaining 7 spots available in the cabinet he/she is...

A: The permutation formula is nPr = n!/(n-r)! 

Q: is theri any way to caluate risk? and what is the associated error of running 5 test using the stand...

A: Explanation:Here find anyway to calculate risk and what is the associated error using the alpha leve...

Q: Consider the bivariate distribution for the random variables x and y. The variance of the sum of x a...

A: Solution

Q: 3. If the 95% confidence interval for a parameter u is (3.1, 5.1) and the 99% confidence interval fo...

A: For 95% confidence interval for mean is (3.1,5.1) that means the mean should lie between 3.1 and 5.1...

Q: In order to forecast enrollment for next fall, XYZ University of the CBA wishes to forecast enrollme...

A: By regression we mean estimation or prediction of the average value of one variable for specified va...

Q: The following data shows the number of hours slept by a patient in 1 weeks 12 18 09 16 11 10 08 i. C...

A: (i) The unbiased estimate for the population mean is,

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The tab...

A: We have given that,  The data set is,  60 67 82 49 51 78 48 49 71 48 59 23 42 68 26 55 57 55 23 26 2...

Q: here ave s Qus ina lt in Calfanica Ine breakclan breakclan 0y mde is as follous Nissan 4 Tapta le Me...

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Q: From experience, an airline knows that only 75% of the passengers booked for a certain flight actual...

A: Let X be the random variable from binomial distribution with probability (p)= 75% = 0.75 and sample ...

Q: Property 4. If X is a random variable and a and b are constants, then E (a X + b) = a E (X) + b, pro...

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