Estimate the mean and the 95 % confidence interval.

Q: M= 90 SD= 7.8   If you score a 99, what percentage of the population scored above you? What raw…

A: Note: As per my policy i can answer only 3 sub parts. kindly repost the remaining sub parts  Given…

Q: COURSE: HUMAN FACTOR ENGINEERING Eye height is 1630mm and SD is 69 z= 1.64. Calculate the 95 th…

A: The 95th percentile is, z=x-μσ1.64=x-163069113.16=x-1630x=1630+113.16=1743.16

Q: 1 6. 2 6. 3 Select the equation that represents the data shown in the table. y = 2x O y= 3x 1 O y=-I…

A:

Q: A researcher claims that at least 10% of all foot to the wearer. A sample of 200 helmets revealed…

A: Given p=10%, n=200, x=16, level of significance ɑ=0.01

Q: What is the value of P(z < -1.33)? Notes: 1. Write your answer using four decimal places (i.e.…

A: Given : Z be a standard normal variable Z~N(0,1)

Q: c. Find P(x > 2). Interpret this result.

A:

Q: I need all the answers step by step

A: Given: population proportion = 0.67 sample proportion = 21/38  = 0.55 we need to test whether…

Q: A population with a mean of u = 8 has EX = 40. How many scores are in the population?

A: It is given that the mean is 8 and sum of X is 40.

Q: Match each P-value with the graph that displays its area without performing any calculations.…

A: Given that  Normal distribution graphs. The P values of the graphs = 0.0166 and 0.2611   Graph A :…

Q: 43. What is the value of E(X - 2) for the scores: 1, 2, -2, 4, 5?

A: Here given that: Score( x) : 1, 2, -2, 4, 5 Make a table of x and (x - 2)  Then sum the column (x -…

Q: 7. A population of N = 15 scores has EX = 120. What is the population mean?

A:

Q: Which variable is the independent variable (the X variable)? Which variable is the dependent…

A: Solution Given. R square = 0.5808 Coefficient of determination = 0.5808 So amount of explained…

Q: A study collects samples of water from the tap in Vacaville and from bottled water available from…

A: The observed pH value is 6.32.The mean pH of Tap water is calculated as follows:

Q: The 20th percentile of weigh is the number of inhabitants ΟΟΟ O200 inhabitants. 320 inhabitants.…

A: Given: number of inhabitance (n)=160020th percentile = 80 kg

Q: Disk drives have been getting larger. Their capacity is now often given in terabytes (TB) where 1 TB…

A: The sample size is n = 7.

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: Givenclaim is proportion of men who own cats is larger than the proportion of women who own…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: We have to find given proportion.

Q: An average of 2.9 accidents occurs per day in a particular city. X is the number of accidents, What…

A:

Q: why is the P(D) not = 0.03 (3/100 cars)

A: Let D be the event that a car is defective, and C be the event that a defective car is checked. We…

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A:

Q: for d how can you calculate  the p value without excel?  need to be able to do on a test without…

A: Given  Given information: n=25 Sample size  Sample mean  x¯= 6.3  Sample standard deviation  s = 1.8

Q: The pictures show the first parts of the question, the missing part is: What is the P-Value for this…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: You are a crime scene investigator trying to match the lead content of bullet fragments found at a…

A: Introduction: Denote μ1, μ2 as the true mean lead content measurements per fragment (grams/cm3) of…

Q: find p (z<0.92) refer to the table of x-scores

A: p (z&lt;0.92) =?

Q: Compute the indicated quantity. P(A|B) = 0.5, P(A n B) = 0.4. Find P(B). P(B) =

A: We will use the conditional probability formula…

Q: 44. What is the value of E(X + 3)² for the scores: 1, 5, 7, 11?

A: Given score is 1, 5, 7, 11

Q: Can anyone please help with F, G, and H? The

A: From the given information, the best model is quadratic model. The equation is,…

Q: To start this off can you complete D and check the first H0 it says its wrong along with the p value…

A: a)The test hypotheses are shown below:Null hypothesis:H0: μ = $494.Alternative hypothesis:H1: μ &gt;…

Q: Using the following scenario,  calculate the value of the point estimate. Tonya wants to estimate…

A: We have given that  Sample size n =47 Favorable cases x =12

Q: follow until degrees of freedom becomes p-value. How did we get to 0.0036?

A:

Q: After 5 days, the proportion of fruit flies eating organic soybeans still alive is 0.91, while the…

A: From the given information, the proportion of fruit flies eating organic soybeans still alive (p̂o)…

Q: How to get the P-value without using the excel formula?

A: Given that, Sample mean (x̄) = 27.70 Population standard deviation (σ) = 9 Sample size (n) = 36 The…

Q: In a sample of 58 men, 44 said that they had less leisure time today than they had 10 years ago. In…

A: Given data: Significance level= 0.10

Q: 1) Inspect the data and estimate the amount of blood lost due to one hookworm. (mL/day)

A: X Y (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 24 12.2 -26.83333 720.02778…

Q: 50 people are selected randomly from a certain population and it is found that 13 people in the…

A: Given that  n=50 , X=13 X=Number of people are over 6 feet tall

Q: How do you find the P-value using ti-84 calculator? df=7 , M&gt;98.6 , n=8 , t=2.428

A: It is given that the t value 2.428 and df is 7.

Q: Match the coefficient of determination to the scatter diagram. The scales on the x-axis and y-axis…

A: The value of the coefficients of determination are 1, 0.9 and 0.58.

Q: 1. Calculate the mean (plug it in each row) 2. Calculate the deviation for each score 3. Sum the…

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Q: eristics 0.58, P(B) = 0.46,

A: Given THAT, 1) P(A)=0.58 2)

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: Given,n1=190  ,  p^1=0.20n2=90  ,  p^2=0.45