many classifications are there for the teachers?

Q: Round your answers to two decimal places. A. With 90% confidence the proportion of all people who…

A: It is given that  Sample size , n = 800 Favourable cases, X = 382 Sample proportion, p^ = X/n  =…

Q: One variable that is measured by online homework systems is the amount of time a student spends on…

A: Given that  25% of the student spends 43 minutes for each section of the text for a single semester…

Q: The student council is hosting a drawing to raise money for scholarships. They are selling tickets…

A:

Q: An inventor has developed a new, energy-efficient lawn mower engine. He claims that the engine will…

A:

Q: Suppose Professor Alpha and Professor Omega each teach Introductory Biology. You need to decide…

A:

Q: Based on the diagram below, create a flowchart when z-test for a mean is appropriate or applicable

A: Z-test for a mean: This test is applicable when the population is normally distributed. It is used…

Q: How much interest is earned when an amount of 100,000Php is invested with annual interest rate of 8%…

A:

Q: An industrial engineer is investigating the effect of four assembly methods (A, B, C, D) on the…

A: The null and alternative hypotheses are: H0: There is no significant difference between the four…

Q: What is the average number of points you would expect to lose if you roll the die 60 times? b.…

A: Given : Number of times die is rolled =50 Lose a point if 1 is rolled

Q: matics teachers working in a school want to compare whether there is a difference between the…

A: Given: Teacher A Teacher B 78 83 60 45 51 54 50 44 45 15 40 40 27 71   85

Q: or the data shown, answer the questions. Round to 2 decimal places. X 21.3 14.3 23.2 2.1 10.3 18.1…

A: The data set of x is given.

Q: STATISTICS AND PROBABILITY (PLEASE SHOW your COMPLETE & CLEAR solutions) RATE WILL BE GIVEN An…

A: The population standard deviation is 100 seconds;σ=100 At 90% confidence interval ; α=0.10 Margin of…

Q: Assume that the computed correlation between x and y is -0.13. Suppose we define new variable s = -x…

A:

Q: An amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and…

A: Given:     Roller Coaster Screaming Demon Log Flume Method 1 41 54 48   43 46 44 Method 2…

Q: Is it possible to have more than one unbiased estimator for an unknown parameter? Or is not…

A:

Q: What is the expected weight of a chimpanzee that is 157 cm tall?

A: Here Given Regression Equation  Y = 0.34x + 19.5 Where  Y = Weight in Kg x = Height in cm And…

Q: gender- either male or female runtime - time to run 1.5 miles (in min) age - age of the gym member…

A: We need to identify the type and level of measurement of the variables given.

Q: A random sample of 1000 google play apps was collected and the average rating was calculated to be…

A:

Q: The average weekly incomes, in £s, of 18 selected occupations in the United Kingdom were: 244, 146,…

A:

Q: 10. mean = 54.2; standard deviation = 12,3

A: Mean =  ? = 54.2 Standard deviation = ? = 12.3

Q: TABLE 2.3 Calculate the variance and standard deviation for the five measurements in Table 2.3,…

A:

Q: 2. The storage length and storage relative humidity are A. both fixed B. both random factors,…

A: Fixed factors/variables: These factors are of fixed nature. It means that it does not change by the…

Q: 7. mean = 60; standard deviation = 6

A: According to policy we supposed to answer first question kindly repost for remaining

Q: A company XYZ issued 30 year bonds with 10% annual coupon rate at their par value of $1000 in 2010.…

A:

Q: A weatherman stated that the average temperature during July in Chattanooga is 80 degrees. A sample…

A:

Q: The data below are yields for two different types of com seed that were used on adjacent plots of…

A: Solution:- from given information μd  is the mean value of differences d for the population of all…

Q: Please also explain why you determined whether or not the results are statistically significant.  A…

A: From the given information we find the solution.

Q: 3. (a) Among the digits 1, 2, 3, 4, 5 at first one is chosen and then a second selection is made…

A: 3. (a) We have given that the digits 1,2,3,4,5. The total number of outcomes =20.

Q: A data set lists weights (lb) of plastic discarded by households. The highest weight is 5.56 lb, the…

A: Given X=5.56 X-bar=2.099 S=1.101

Q: 7. mean = 60; standard deviation = 6

A: It is given that: μ mean=60 and σ standard deviation=6.

Q: "Starstruck" is a reality talent search in GMA Network. One of the contestants of the said program…

A: Given data :   classes Frequency 1 31-35 2 2 26-30 1 3 21-25 4 4 16-20 2 5 11-15…

Q: Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a)…

A:

Q: Q19. Let Z be a standard normal variable, find k such that P(-2<Z<k)=0.627. A) 0.3846 B) 0.3223 C)…

A:

Q: A) 0.3413 B) 0.8413 Q23. If 25 residents are randomly selected from this city, the probability that…

A:

Q: 4.5.11. Let Y₁ 1 is accepted if the observed Y₁ 2 A (a) Find the constant c so that the…

A:

Q: 8. For the standard normal distribution, find the area between the z scores of -1.50 and 2.50. 9.…

A: Given: μ = 100 σ = 15   Formula Used: Z-score = X-μσ Z-score = X-μσn

Q: Q1. A sample of size n = 8 drawn from a normally distributed population has sample mean =14.8 and…

A:

Q: At UB, the probability that a student takes Business Statistics is 0.70. The probability that a…

A: Given Let, A=Student takes business statistics P(A)=0.70 B=Student is on scholarship  P(B)=0.80…

Q: A) y= Q25. The correlation coefficient (r) between X A)-0.8987 B) 0.8632 C) -0.9603 enswer: D)

A: We have given that,  X :- 3, 4, 6, 8, 10 Y:- 8, 6, 7, 5, 3 Then,  We will find the correlation…

Q: In a study examining the effect of stress on child development, the data collected on the stress…

A: For the given data Perform Anova single factor

Q: Instruction: Complete the table below. Solve the mean (2 methods), median (2 methods), and the mode.…

A: Given information: Score interval f 60 to 64 8 65 to 69 11 70 to 74 12 75 to 79 25 80…

Q: Suppose that an airline uses a seat width of 16.1 in. Assume men have hip breadths that are normally…

A:

Q: A) 0.3846 B) 0.3223 *Consider the following table, and answer the following Two questions Q24. Find…

A:

Q: In the entire group of first-year statistics students, half own a calculator (h), and the rest don’t…

A: Percentage of students don't own a calculator = 50% = 0.50 Sample size = n = Number of students are…

Q: You are a keen gardener and keep a great array of houseplants in your dorm. You are thinking about…

A:

Q: 2. In a study examining the effect of stress on child development, the data collected on the stress…

A: The following information has been given: Age 2 Age 5 Age 7 Age 9 6 12 12 10 8 14 15 10 10…

Q: When you calculated confidence intervals using a z-test for one sample proportion, what kinds of…

A: Given Information:- Confidence intervals using a z-test for one sample proportion.

Q: Researchers examined the candy bar consumption of college undergraduates and found that males ate…

A: Consider that μ as the population average amount of candy consumed by female undergraduates.

Q: Researchers developed a "dog IQ test" and find that the population of dogs in the United States has…

A: Given σ = 2.  n=40 µ = 20

Q: Prove the 2-tailed case of the One-Sample t-test, i.e., if X₁, X2,..., Xn is a random sample from a…

A: Given that  We have to prove the 2 tailed test of one sample t test :