Compute the indicated quantity. P(A | B) = 0.3, P(B) = 0.6. Find P(A n B). P(A n B)

Q: c) Find the test statistic, round answer to 1 decimal place. x² = d) What is the p-value? Round…

A: Given: Observed frequency   yes no total treatment 16 50 66 control 9 94 103 total 25 144…

Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…

A: we have to find sample size required for margin of error.

Q: data preparation

A: True

Q: 2. value of E Cx-)? for What is the Scores 2,2. 14!

A: Given  2,2,1,4

Q: Use the given values of n and p to find the minimum usual value μ - 2σ and the maximum usual value μ…

A: Obtain the value of mean. The required value of mean is, Thus, the value of mean is 22.32.   Obtain…

Q: A professor gives A's to students with z-scores of +1.50 or higher. a. What proportion of a class…

A: The distribution of proportion should be normally distributed. z-score = 1.5

Q: X~ N(4, 0²) If X~ N(10,9) find P(X > 12)Express your answer as a percentage. (zero d.p.)

A: From the provided information, Mean (µ) = 10 Variance (σ2) = 9 Standard deviation (σ) = 3 X~N (10,…

Q: (g) The number of students who received grades of 75 or higher. (h) The number of students who…

A: We have given the data of 80  students.  Note: According to Bartleby expert guidelines, we can…

Q: A survey of 100 fatal accidents showed that 17 were alcohol related. Find a point estimate for p,…

A: Given ,   n = 100  x = 17

Q: Compute the indicated quantity. P(A | B) = 0.3, P(B) = 0.8. Find P(A n B). P(A n B) =

A: Using conditional probability we get:P(A|B)=0.3P(A∩B)P(B)=0.3P(A∩B)=0.3P(B)P(A∩B)=0.3×0.8 [given…

Q: Claim: The proportion of people who smoke is equal to 0.19. Identify a Type I error for the claim…

A: Type I error : P(Reject Ho | Ho is true)

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: Consider a test for µ. If the P-value is such that you

A: From the given information, the test is conducted for µ. Rejection rule: If P-value less than the…

Q: The test statistic, t, is. (Round to two decimal places as needed.) The P-value is (Round to three…

A: Provided information is, researcher conducted a study to determine whether magnets are effective in…

Q: Compute the indicated quantity. P(A|B) = 0.4, P(A ∩ B) = 0.3. Find P(B).

A:

Q: Use estimation to identify which of the choices below must be correct. 2.37 .6 (a) .39 (b) 1.77 (c)…

A: We have  to find the value

Q: Compute the indicated quantity. P(B) = 0.5, P(A n B) = 0.2. Find P(A|B). P(A|B) :

A:

Q: Compute the indicated quantity. P(A|B) = 0.5, P(A N B) = 0.4. Find P(B). P(B) = (No Response)

A: The objective is to find the required value

Q: Compute the indicated quantity. P(A | B) = 0.3, P(B) = 0.7. Find P(A ∩ B).

A: Given P(A|B)=0.3, P(B)=0.7We know that P(A∩B)=P(A|B)P(B)

Q: c. What is the p-value associated with the test? p-value = 0.12 O p-value = 0.009 O p-value = 0.008…

A: Given that    Alive Died Total Present 24 52 76 Absent 126 133 259 Total 150 185 335…

Q: Compute the indicated quantity. P(A | B) = 0.3, P(B) = 0.7. Find P(AN B). P(A N B) =

A: Formula: P(A/B)=P(A∩B)P(B) ⇒P(A∩B)=P(A/B)×P(B)

Q: 2 out of 10 students surveyed earned an 'A' in a particular class. Which of the following is the…

A: In the case of the numerical value of the study variable e.g. height of the students in a class, we…

Q: vith Exemor, and 195 find relief from their depression. Can we conclude, at the 0.01 level of…

A: Given : n1=402 , n2=587 , X1=146 , X2=195 ,  α=0.01 Here , we want to test the claim that the…

Q: Compute the indicated quantity. P(A | B) = 0.3, P(B) = 0.7. Find P(A N B). P(A N B) =|

A:

Q: They want to test if the true proportion of working markers from the new machine is greater than…

A: Answer: Given that the Company bought a new machine that makes makers. In a random sample of 250…

Q: (c) Calculate the coefficient of determination. Give an economic interpretation to the value…

A:

Q: Use the output provided in the formula sheets folder. Using the reduced model, test if X2 is…

A: Given the reduced model as Y=β0+β1X1+β2X2+ε

Q: How many kilograms will be corresponds to the z-score of 1.5 of the weight of woman? A) 76 kg B) 79…

A: Given,Mean μ = 70Standard deviation σ = 6

Q: The radius of a circle is measured as 100mm with a standard uncertainty of 0.8mm.What is the area…

A: It can be solve easily using some uncertainity concepts..

Q: pothesis using the P-value approach. Be sure to verity the requirements of the test. 0.5 versus H,…

A: The requirement to check the single proportion test is,  npo (1-po ) ≥10 The test statistic is,

Q: 1. Find the absolute error and percentage relative error, when e is approximated by p* = 2.515 2.…

A: Absolute error= (True value)-(observed value) Percentage relative error=(Relative error)x100% ,where…

Q: Compute the indicated quantity. P(B) = 0.5, P(A n B) = 0.2. Find P(A|B). P(A|B) ▪

A: P(B) = 0.5 P(A∩B)=0.2

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is…

A: Given,n=321x=22p^=xnp^=22321=0.0685α=0.01

Q: 45. What is the value of E(X² + 2) for the scores: 3, 4, 7, 8?

A: Given that  The data are 3,4,7,8 the value of ∑(X2+2)

Q: Consider a test for µ. If the P-value is such that you can reject H0 for α=0.01, can you always…

A: From the given information, Consider, a test for µ. While testing the µ it is already given that the…

Q: Dr. Stoney has administered a test to his students. He calculated a x̄= 86 and ?? = 12. a. What is…

A: It is given that the mean is 86 and the standard deviation is 12.

Q: (a) Approximately ? v of the students scored between 18 and 84. (b) Approximately 95% of the…

A:

Q: Compute the indicated quantity. P(A | B) = 0.1, P(B) = 0.7. Find P(A N B). P(A N B) = (No Response)…

A: Explanation of the answer is as follows

Q: Say you get a z-score of z = 0.35. Find 2 * Pr(Z ≥ |z|)

A: We will use Std. Normal table to find the required probability.

Q: 1. The average grade of the Senior High School students is 90%. A researcher wants to check the…

A: The null hypo. is a statistical statement stating no relationship between the observed and measured…

Q: er the age of 18 who eat dinner toget than the level of significance. Theref an the level of…

A: Given data number of success , x= 515.0 sample size, n = 1172 population…

Q: +++ 3.80 3.81 3.82 3.83 3.84 3.85 3.86 3.87 3.88 3.89 3.90 Which is the BEST estimate for the value…

A: Given ,  We have to check which is the best estimate for the value of x

Q: chnicians gather a random sample of fill amounts and find that the mean of the sample is 7.5 ounces…

A: We have,  μ=7.3 The null hypothesis states that the mean is equal to 7.3 whereas the alternative…

Q: Monique collects data from a random sample of seventh graders in her school and finds that 6 out of…

A: The correct option is : (6/9) = (n/78) :  option (A)   the detailed solution is as follows below:

Q: Question 20 nat is the approximate value of x in A ABC below? 650 40° O A 5 O B 11 12 D 15

A:

Q: c. What is the raw score when -0.48 <z< 1.4? d. What is the raw score such that 60% is below it?

A: Given that  μ = 30 , ? = 4.5 Z-score =( x - μ )/?

Q: Events X and Y are such that P(x)= 0.35 and P(x ∪ y) = 0.80. Given that X and Y are independent and…

A: From the provided information, P (x) = 0.35, P (x Ս y) = 0.80 The events X and Y are independent and…

Q: The performance chart of a truck shows that its max speed is 50 Km/h. The truck hauls the loaded…

A: Given that the maximum speed of the truck is 50 km/hr In meter per second we have  Max. speed =…

Q: s of qualitative data set with a class frequency of 70 is represented on a the total frequency of…

A:

Q: d. Which score appears most often? e. There are only two values between 75 and 95 for which no one…

A: d. It can be observed that the score 90 appears 5 times. Thus, the score appears most often is 90.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.