For the last 10 years, a certain school in Visayas has a passing rate of 63.25% for the bar exam. If 245 graduates will take the bar exam. What is the probability that at least three-fourth of takers will pass the exam7 (use normal distribution approximation

Q: Attached is an Online Survey result, where the 100+mbps is 5%. Find Q3, D10, and P99. Find your…

A: Introduction: We need to find the 3rd quartile Q3, the 10th decile D10, and the 99th percentile P99.

Q: MANCE TASK # 4 % confidence level,n = 12, s 4.93 DIRECTIONS: Find the length of the confidence…

A: Given. n=12, s=4.93, 1-ɑ=0.98

Q: The data corresponds to a study that found that the number of stumps from trees felled by beavers…

A: Introduction: We have used Excel as our software of choice.

Q: The following hypotheses describe a _-tailed test. Ho : µ = 25 HA: µ + 25 three two one four

A: Given,H0:μ=25HA:μ≠25

Q: 15.) Who works on the normal distribution independently but around the same time as Gauss? * a.…

A: We have given that the statement about to the normal distribution. Here, need to find the correct…

Q: 2,...,A3 a populati ng meanu and variance Which of the estimators have a variance of u? X1+X2++X7 7…

A: Solution

Q: What are any measurable characteristics of population?    a. Sample   b. Population   c. Parameter

A: The measurable characteristics of population is known as parameter.

Q: estion 1: Let X beta(a, 1). Find the distribution of- log(X). Hint: Use the fact that I'(a+1) =…

A: Solution

Q: The NULL HYPOTHESIS in a Chi-Square test for multiple proportions assumes which of the following A…

A: Null and alternative hypotheses: Null hypothesis: Null hypothesis is a statement which is tested for…

Q: We want to conduct a hypothesis test of the claim that the population mean germination time of…

A: Given that  Claim : The population mean germination time of strawberry seeds is different from 17.8…

Q: Use a 1% level of significance to test the claim that ρ 0 c.) H0: ρ 0 d.) H0: ρ > 0 and H1: ρ <…

A: Since, we answer up to three sub-parts, we'll be answering the first three subparts. Please resubmit…

Q: The director of a hospital wishes to estimate the mean number of people who are admitted to the…

A:

Q: (5) Records show that 85% of students need work in chemistry , 60% need work in writing and 50% need…

A: Given that 85% of students need work in chemistry , 60% need work in writing and 50% need work in…

Q: A sample of n = 24 data values randomly selected from a normally distributed population has variance…

A: Solution-: Given: n=24,s^2=21.7 We want to construct a 90% C.I. for the population variance.

Q: find the margin of error at a 98% confidence level

A: here given n= 22 sample mean  = 45  s = 5

Q: b. Assume that based on prior studies, about 8% of residents of the region are left-handed. The…

A:

Q: 1. Marcela and Lorenza agreed to go under one-month observation period. During the time, the fashion…

A: given that,  Marcela and Lorenza agreed to go under one-month observation period. During the time,…

Q: Find the sample size needed to estimate the percentage of residents of one region of a country who…

A:

Q: To determine the effects, researchers measured the LDL levels of 36 randomly selected men and 41…

A: Solution-: Given:               For women:n1=41,x1¯=15.4,σ1=1.9  and  For men: n2=36,x2¯=13.3,σ2=1.3…

Q: What is the marginal relative frequency of survey participants who prefer football?

A: here given, survey of lisa's classmates' favorite sport and recorded their genders.

Q: Understanding student demographics is important for a college in deciding what programs will most…

A: Population parameter" The proportion of students who identifies as Hispanic or Latino. Point…

Q: A survey found that 35% of pet owners had their pets bathed professionally rather than do it…

A: Givenp=0.35n=10Let "x" be the people have bathed their pets…

Q: - Find 99% confidence interval for the population proportion

A: here given  n = 499 p ^ = sample proportion of women wear flats to work = 0.37

Q: The sample data is given as, 1470 1510 1690 1740 1900 2000 2030 2100 2190 2200 2290 2380 2390 2480…

A: Given data is…

Q: 3. In a test of Ho: µ = 85 against Ha: µ> 85, the sample data yield the sample statistic z = 1.64.…

A: Given that  Population mean μ =85 Test statistic z =1.64

Q: 17.) What is the scale parameter? O a. Mean O b. Variance c. Standard Deviation

A: We have given that the statement about to the scale parameter.

Q: The next seven questions refer to the following scenario: A random sample of 16 Porsche drivers…

A:

Q: 2. Determine if there is relationship between the age of person in years and their weight in kg…

A:

Q: inutes on average to complete a specific task. Given that the utes and the times for completing this…

A: Given

Q: (2) Here are grades collected from freshmen and sophomores Grade A B C D F total 15 9 10 16 20 15 6…

A: Since we answer only up to three subparts of a problem, we'll be answering the first three subparts.…

Q: Exit polling is a popular technique used to determine the outcome of an election prior to results…

A:

Q: Find the value of y7. Round your answer to three decimal places. 7.7 %3D

A: We have given that  The degree of freedom, df = 7 Area of shaded region = 0.7

Q: If you choose to work with a t-score, how many degrees of freedom would you have?

A: Here given  Sample mean = 87 Sample size = n = 25

Q: tewart Fleishman specializes in the psychiatric aspects of symptom management in cancer patients.…

A:

Q: 1-13. A bin of 50 parts contains 5 that are defective. A sample of 10 parts is selected at random,…

A: 1-13) The given information is  50 parts contain 5 defective. A random sample of 10 parts is…

Q: There are a lot of examples that show how the measures of position are applied in real-life…

A: Measures of position determine the position of a single data value from the rest of the values. It…

Q: A company wished to study the differences among four sales-training programs on the sales abilities…

A: Null Hypothesis: H0: There is no sufficient evidence to indicate a difference in the mean…

Q: The mean age when smokers first start is 13 years old with a population standard deviation of 1.9…

A: The sample of 30 smokers found that their mean starting age was 12 years old; n=30 mean starting age…

Q: What is the selection of a subset of a population where each element has an equal chance of being…

A: here use basic of sampling method

Q: Consider the following confusion matrix Predicted Class Actual Class 1 1 255 173 52 291 Based on…

A:

Q: The average student studies eight hours for a statistics exam and receives a grade of µ = 84. In a…

A: The claim regarding the increase in mean statistics score at the population level has truly…

Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…

A: Solution-: Given: μ=117,σ=14 Let, X= IQ of an individual ∴X→ N(μ=117,σ2=142) We find, (b) P[a…

Q: have training courses is 555 with standard deviation of 139. Brain Philippine (BP) offers expensive…

A: Given Population mean μ=555, n=sample size=30, sample mean x̄=560, level of significance ɑ=0.05

Q: 7.1.3 Hypothesis test for a population proportion. TY 391676 q3zay? Jump to level 1 A software…

A: We have given that,  Population proportion (p) = 64% = 0.64, favorable cases (X) = 193 and sample…

Q: Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the…

A:

Q: Granny Maggie has been investing in government bonds and corporate stocks since her mid 30’s. Now,…

A: The objective is to find out the expected return and sd of return on Granny's gold investment.…

Q: In a survey, 30 people were asked how much they spent on their last shopping trip. The results wer…

A:

Q: A simple random sample of n=16 is drawn from a population that is normally distributed with o = 18.…

A: Solution-: Given: x¯=67,n=16,σ=18,c=0.98 We want to construct 98% C.I. for the population mean?

Q: You are interested in estimating the the mean age of the citizens living in your community. In order…

A:

Q: According to a study conducted by a statistical organization, the proportion of people who are…

A: For the given data Select the correct choice