What is the class expected and chi square

Q: is in the groove and makes both free throws. makes the first and then misses the second. misses the…

A: Given: Percentage of making free throws is 87% p=0.87 therefore q=1-p=1-0.87=0.13

Q: Correlations Practice DIRECTIONS: Identify the two variables in the example. For direction of…

A: Introduction Correlation shows a relationship between 2 variables.

Q: An electronics manufacturing process has historically had a mean completion time of 70 minutes. It…

A: Given: μ = 70 n = 21 X = 69 s = 10 Formula Used: Test-statistic t = X-μsn

Q: f 9% of all cars fail the emissions inspection, find the probability that in a sample of 125 cars,…

A: Given: 9% of all cars fails the emission inspection (p=0.09) n=125 P(X=16)=?

Q: Question 13 < A certain kind of sheet metal has, on average, 4 defects per 13 square feet. Assuming…

A: Solution: Let X be the number of defects per 13 square feet.  The average number of defects per 13…

Q: A data set includes data from 400 random tornadoes. The display from technology available below…

A: 1. The claim that the mean tornado length is greater than 2.8 miles.  The hypotheses are as follows:…

Q: A bag contains 2 red Roses, 4 yellow Roses and 6 pink Roses. Two roses are drawn at random. What is…

A:

Q: Three different methods for assembling a product were proposed by an industrial engineer. To…

A:

Q: Out of 300 people sampled, 270 had kids. Based on this, construct a 90% confidence interval for the…

A: given data, n=300x=270CI=0.90α=1-0.90=0.10Zc:=Zα/2=Z0.10/2=Z0.05=1.645 [from excel function , code…

Q: The diameter of steel rods manufactured on two different extrusion machines is being investigated.…

A: Machine 1:Sample size, n1=15Sample mean diameter, x1=8.69The sample variances, s12=0.35Machine…

Q: A series of measurements of the angle of shearing resistance of a sand determined that the parameter…

A:

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1441…

A: From given data we have : n1=1441,x1=427n2=751,x2=215

Q: A bag of M&M's has 5 red, 6 green, 2 blue, and 4 yellow M&M's. What is the probability of randomly…

A: (1)   Obtain the probability of randomly picking a yellow M&amp;M.   The probability of randomly…

Q: :49 There are possible different leadership structures. (Type an integer or fraction. Simplify your…

A: Given that, 4 members from a 42-person committee are to be selected randomly to serve as…

Q: Consider the following hypothesis test: Ho: μ 12 = 4.32. A sample of 25 provided a sample mean = 14…

A: Here, n=25, x¯=14,s=4.32, μ=12. The test statistic value is, t = x¯-μsn  =14-124.3225  = 2.31

Q: Question 12 Next Question > Delta Airlines' flights from Boston to Seattle are on time 60% of the…

A: Given that p = 0.60        and    n= 12 Let X be a random variable from Binomial distribution

Q: In a survey of employee satisfaction, the following table summarizes the results in terms of…

A: male female total satisfied 27 18 45 dissatisfied  33 22 55   60 40 100

Q: Problem 2: An item is made in lots of 200 each. The lots are given 100% inspection. The record sheet…

A:

Q: Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury ( mmHg)…

A:

Q: In the past, when elementary school children in a large city were screened, 25% were found to have…

A: Given that the percentage of auditory defects is 25%. Let, p=25%=0.25 Among 200 children, 63 were…

Q: 1. Give the estimated regression function. Also, give the hypothesis, test statistic and the…

A: From the given information, Analysis of Variance       Source DF SS MS Regression   350…

Q: urnal of Communication (Summer 1997) published a study on US media coverage of major earthquakes…

A: given data, n=22x¯=1780s=2797CI=0.99α=1-0.99=0.01

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

A: From the provided information, n = 12, p = 0.4 and x = 3

Q: In which of the following scenarios will conducting a paired t-test for means be appropriate? CHECK…

A: Definition:  Paired t-test is used when two variables are used.

Q: Trials in an experiment with a polygraph include 96 results that include 23 cases of wrong results…

A: given data, 23- wrong results 73- correct results 96- total results claim: p&lt;0.80α=0.05p^=xn…

Q: An expert hits a target 95% of the time. What is the probability that the expert will miss the…

A: Given,P(An exper hits a target)=0.95

Q: What would a t-test look like?

A: A business researcher is gathering data to test the hypothesis about a single mean of population and…

Q: A manufacturer knows that on the average 2% of the electric toasters that he makes will require…

A:

Q: Use the given data set to complete parts (a) through (c) below. (Use a = 0.05.) 10 7.47 X y O A.…

A: Given that: x y 10 7.47 8 6.46 13 12.73 9 7.11 11 7.82 14 8.84 6 6.08 4 5.39…

Q: The Highway Safety Department wants to study the driving habits of individuals. A sample of 81 cars…

A: Given information Sample size (n) = 81 Sample mean x̅ = 67 mph Standard deviation (s) = 9 mph…

Q: A safety engineer feels that 30% of all industrial accidents in her plant are caused by failure of…

A: Given that, a safety engineer feels that 30% of all industrial accidents in her plant are caused by…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 299 tested​…

A: given data  n = 299 x = 29 claim : p &lt; 0.10 we have to find null and alternative hypothesis.

Q: A simply supported beam has a span of 6 m and a moment of resistance Mr. The beam carries a uniform…

A:

Q: An epidemiologist wants to estimate the proportion of residents in her city that carry the Hepatatis…

A:

Q: 1. Find the MLE of 0 based on a random sample X₁, X₂,..., Xn from each of the following p.d.f.'s.…

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

Q: What is the numerical value of 2,025? 00 O 1.65 O 1.96 O2.32

A: Here, the level of significance is α=0.05. Thus,  1-α2=1-0.052=0.975.

Q: A vital statistics record shows that the population of a certain city in the year 2021 was 1,000,000…

A: Given: Total population of the city = 1000,000 Number of diabetes patients = 6000 Total number of…

Q: The number of initial public offerings of stock issued in a 10-year period and the total proceeds of…

A: Given Issues, x 407 458 699 475 476 379 58 61 200 171 Proceeds, y 19,682 29,343 43,297 30,849…

Q: ew-Homes Prices If the average price of a new one-family home is $246,300 with a standard deviation…

A: Given that, The population mean is, μ=246300 The population standard deviation is, σ=15000 Consider…

Q: [kx Determine k, so that fx,y(x, y) = a) Determine fx(0.6) b) Determine fy(0.6) c) Determine…

A: Method: Using the joint pdf to find the margin pdf of x and y

Q: Reading Improvement Program To help students improve their reading, a school district decides to…

A: given data, normal distribution , μ=129.3σ=15     p(X&lt;Z)=0.15cutoff score =?

Q: Determine k, so that ƒx,y(x, y) (x,y) =. a) Determine fylx=.25(0.5) b) Determine E[X] c) Determine…

A: Given: The joint pdf is given fx,yx,y=kx0&lt;x&lt;y&lt;10otherwise

Q: Trucks arrive at a receiving dock in a Poisson fashion at a mean rate of 2 per hour. The trucks can…

A: Given data :  Let a = arrival rate = 2 per hour       b = unloading = 3 per hour a). Average number…

Q: Use the given data to find the equation of the regression line. Examine the scatterplot and identify…

A: Given n=11

Q: A safety engineer feels that 30% of failure of employees to follow instru industrial accidents…

A: Given, A safety engineer feels that30% of all industrial accidents in her plant are caused by the…

Q: Why would you calculate sD when you have it already offered in the assignment??

A: Given  Null Hypothesis: There is no significant difference in a person's spatial skills  after…

Q: Researchers were interested in assessing the effects of a new treatment on seasonal affective…

A: Anova is used to test the mean significance between three or more groups. If there exist…

Q: = For a Fully Parametric Proportional Hazards (FPPH) Model with hazard rate h(t) = ho(t)ex, where ß…

A: Given a Fully Parametric Proportional Hazards (FPPH) Model with hazard rate  ht=h0teβx , where β=1

Q: Let x be a random variable that represents the weights in kilograms (kg) of healthy adult female…

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

Q: A flush in the card game of poker occurs if a player gets five cards that are all the same suit…

A: The total no. of cards in a standard deck is 52. The no. of cards in each suit is 13. There are 4…