how do you find X in part b

Q: One hundred draws are made at random with replacement from a box with the following 4 tickets: 1, 2,…

A: The given four tickets are 1, 2, 2, 5.

Q: Match the name of the sampling method descriptions given. Situations  call every 15th…

A: Defination: Systematic random sampling is the random sampling method that requires selecting samples…

Q: You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based…

A: Given that  Population  standard deviation =25.3 Margin of error =E =4 98% confidence level

Q: The times in hours for 200 people who ran the New York marathon are Mean 2.41 hours, standard…

A: It is given that  The range of times is between 1.92 and 3.04.

Q: The following data provides the monthly streaming bill for a random sample of 20 households along…

A: Given: The following data provides the monthly streaming bill(y) for a random sample of 20…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: It is given that the readings at freezing on a batch of thermometers are normally distributed with a…

Q: Suppose that textbook weights are normally distributed. You measure 48 textbooks' weights, and find…

A: Given that  Sample size n =48 Sample mean=43 Population standard deviation =13.1

Q: A hacker is trying to guess someone's password. The hacker knows (somehow) that the password is 10…

A: Given: A hacker is trying to guess someone's password. The hacker knows (somehow) that the password…

Q: times in hours for 200 people who ran the New York marathon are Mean 2.41 hourd, standard deviation…

A: Given that  Mean = 2.41 , Sample size = 200

Q: This will be involving the rolling of a die. Assume that the die is weighted so that the probability…

A: Given that We are given here that: P(D = 1) = 0.1 P(D = 2) =0.2 P(D = 3) = 0.1 P(D = 4) = 0.1 P(D =…

Q: onduct a test at the α=0.01level of significance by determining ​(a) the null and alternative​…

A: given data sample 1 : n1 = 244x1  = 126sample 2 : n2  = 306x2 = 139α = 0.01claim : p1 > p2

Q: LOCA- TION 1 DATA 49 POINT LOCA- 13 TION DATA 78 2 63 14 78 3 63 15 78 4 68 16 80 70 17 83 6 72 18…

A: here total observations = n = 24  no. of observations below 90 = 20 percentile of 90 = ?

Q: What is the standard error of rolling a 4 on a six-sided die in 2000 rolls?

A: Given that  n = 2000 , p = 1/6 , q = 5/6 p = Probability of Rolling 4

Q: In order to test the functionality of dental implants in the treatment of caries, half of the teeth…

A: Solution: State the hypotheses. Null hypothesis: H0: Filling teeth does not affect the amount of…

Q: Winning team data were collected for teams in different​ sports, with the results given in the…

A: The claim is that the claim that​ home/visitor wins are independent of the sport.

Q: A simple random sample of size n=200drivers with a valid​ driver's license is asked if they drive…

A: given data claim : p > 0.5n = 200x = 123α = 0.05p^ = xn = 123200 = 0.6150

Q: A regression was run to determine if for a certain baseball season, winning percentage, y, and…

A: As per our guidelines I can solve only first three subparts. Kindly post the remaining subparts…

Q: A travel industry researcher interviews 100 passengers on five randomly selected Alaskan cruises.…

A: The correct  option is A Cluster sampling  technique.

Q: A corporation owns several companies. The strategic planner for the corporation believes dollars…

A: We have given the following table Advertisement (x) Sales (y) 12.5 148 3.7 55 21.6 338 60…

Q: #6 The AKC says that the average weight of Chihuahua dogs is 4.6 lbs. sample A veterinarian thinks…

A: 6) Let μ  and σ denote respectively the population mean and standard deviation of the weight of…

Q: Student 1 -234567 X 90 87 85 85 95 96 82 85 87 89 90 92 94 80 75 4.3 1.3 -0.7 -0.7 9.3 10.3 -3. -7.…

A: In Xi-X̄ column, X̄ is the mean of sample values of X.  X̄= ΣXi/n

Q: 55.7 45.9 62.4 62.2 51.8 48.8 62.4

A: x x2 45.9 2106.81 48.8 2381.44 51.8 2683.24 55.7 3102.49 62.2 3868.84 62.4 3893.76…

Q: state 1 is 50 and for state 2 is 60.Is this difference significant or just by chance? Use…

A:

Q: The rabies vaccine for dogs can save your dog's life. If your dog bites another animal or is on the…

A: To find: What kind of test will you need to perform?

Q: A 99% confidence interval for the percentage of people in a town who have a college degree is…

A: Given that  99% confidence interval is  (65% , 71%)

Q: Fin the indicated area under the standard normal curve. Between z= 0 and z= 0.71   The area…

A: Giventhe indicated area under the standard normal curve Between z= 0 and z= 0.71

Q: 7) (T/F) The odds ratio can be computed from probability values and represents another way of…

A: If m items is favourable to the event A and n of them are unfavourable to the event A. Then odds in…

Q: In a study of the stability of IQ scores, a large group of individuals is tested once at age 18 and…

A: Given At age 18: average score = 100, SD = 10At age 35: average score = 100, SD = 10

Q: For a data set of the pulse rates for a sample of adult​ females, the lowest pulse rate is 31 beats…

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

Q: a) What is the lower endpoint of this confidence interval? b) What is the upper endpoint of this…

A: Given that: First sample: x¯=10.1sX2=5.5n1=13 Second sample: y¯=7.1sY2=6.4n2=19

Q: 2. The x values and standardized residuals for the chlorine flow/etch rate data of Exercise 52…

A: Given The data is as follows: x e* 1.50 0.31 1.50 1.02 2.00 -1.15 2.50 -1.23 2.50 0.23…

Q: Education developers are challenging whether the enrollment rate at online educational events…

A: given data year 2022 : n1 = 200x1  = 168year 2021 : n2  = 200x2 = 179α = 0.01claim : p1 < p2

Q: It is a measure of variability equal to the difference between the third and first quartile. O Range…

A:

Q: Suppose a researcher wants to know how a behavioral intervention is affecting the frequency of…

A: Introduction: It is required to choose the most appropriate test.

Q: P(-1.08 ≤ z ≤ 0) =_ O 35.77% O 35.99% O 36.21% O 46.86%

A: we have to find out the probability of the given data standard normal curve,  X~N(0,1)

Q: True or False Question   A procedure used for finding the equation of a straight line that provides…

A: Objective of this question is that above statement is TRUE or FALSE.

Q: Find the z-score where 95% (.95) of the curve is below this z-score and 5% (.05) is above.     Find…

A: It is given that the z-score is Z = ( X - μ )/σ ~ N( 0, 1 ).

Q: Here is the sample data. Category Got the Flu Did not get the Flu Got Flu Shot 42 109 Did not get…

A:

Q: Find the test statistic and p value

A: Actual Reported 64.8 65 67.8 68 70.3 71 61.3 2 62.2 61 68.8 69 66.3 66 70.7 70…

Q: The table shows the miles drive by a UPS truck driver. The distance is the total number of miles he…

A: Given information- We have given a linear regression equation for the data- y = 12 + 30x We have to…

Q: On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on…

A: Expected value is calculated using the random variable with corresponding probability value. It is…

Q: A researcher with the Department of Education followed a cohort of students who graduated from high…

A: Given that.  Sample size n1=253 , n2=1129 Sample mean x1 =5.36 , x2=4.40 s1=1.161 , s2=1.015

Q: 26. The results from a Pearson correlation used to examine the relationship between two variables…

A: As per our guidelines I can solve only first question. Kindly post the remaining questions again one…

Q: Populations are different than samples because_________________. (Select all that apply).

A: Sample is subset of population,  while population is entire set.

Q: Dorothy Kelly sells life insurance for the Prudence Insurance Company. She sells insurance by making…

A: Given data: x y 12 1 20 13 15 8 15 5 28 8 5 2 20 5 14 6 22 8 7 3 15 5 29…

Q: The breaking strengths of cables produced by a certain company are approximately normally…

A: GivenVariance of breaking strength is 34782.25claim is that the actual variance is higher

Q: How does an outlier affect the mean absolute devlation?

A: Mean absolute deviation is calculated using the formula: MAD = ∑xi - x¯n xi = Input data values x¯ =…

Q: What is the probability that the mean income of the sample from country A is above ​$​46,249? (Round…

A:

Q: R4.1. uality control A consumer organization estimates that 29% of new cars have a cosmetic defect,…

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

Q: The data in the accompanying table give the weights (in g) of randomly selected quarters that were…

A: