6). If X is a binomial random variable with n=6 and p=0.4, the probability P(X21) is A) 0.2333 B) 0.7667 C) 0.9959 D) 0.9533 7). If X is a binomial random variable with n=9 and p=0.4. The standard deviation of X is A) 1.4697 D) 1.8974 B) 2.16 C) 3.6
Q: Use a stem-and-leaf plot to display the data, which represent the numbers of hours 24 nurses work…
A: Answer:- Given data in ascending order, 28, 30, 32, 32, 33, 35, 35, 36, 36, 36, 36, 38, 40, 40, 40,…
Q: 1. A librarian from the University of Nairobi observed that there is a significance differences in…
A: Main Kikuyu kenya science 9 10 15 7 9 11 3 11 12 6 10 9 5 7 10 8 6 8
Q: How Fast Do Homing Pigeons Go? Homing pigeons have an amazing ability to find their way home over…
A: Speed of homing pigeons, in yards per minute is as follows: Hens 1676 1452 1449 Cocks 1458…
Q: Use the given minimum and maximum data entries, and the number if classes, to find the class width,…
A:
Q: Calculate the appropriate test statistic.
A: The population mean is 15. The sample size is 36, the sample mean is 16.33 and the sample standard…
Q: 4. Combinatorics and the Binomial Distribution a) How many different ways can you permute 6 distinct…
A: Each toss has the only option of getting a "Head" (defined as success) or "Tail" (defined as…
Q: 4. A sociologist was investigating the ages of grandparents of high school students. From a random…
A: Let us consider two samples follows approximately normal Consider the samples are taken randomly…
Q: An estimated odds ratio for adult females between the presence of squamous cell carcinoma (yes, no)…
A: We must first comprehend what the odds ratio means in order to demonstrate that the estimated odds…
Q: The accompanying table shows the results of a survey in which 250 male and 250 female workers ages…
A: a) The contingency table is given as follows: Contribute Do not contribute Total…
Q: Here is a data set: 214 217 219 223 238 241 245 228 247 250 253 253 254 256 259 262 263 265 266 269…
A:
Q: Four seniors and six juniors are competing for four places on a quiz bowl team. What is the…
A: From the given information , Total number of seniors = 4 Total number of junior = 6 So, Total…
Q: The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and…
A: The given mean is 15 and the standard deviation is 4. The amount of coffee that people drink per day…
Q: Let A be the event that you throw a six, and B be the event that you throw a seven. Then the events…
A: We here assume a 6 faced die The probabilities are calculated
Q: If the decision in a hypothesis test said to reject Ho, then we can always make a conclusion that…
A: Hypothesis is an assumption that is being tested.
Q: X is the Binomial Random Variable which counts the number of students who passed an exam. If the…
A: As per our guidelines we are supposed to answer only one question per post so i am solving first…
Q: In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a…
A: As per our guidelines we are suppose to answer only one question kindly post the remaining question…
Q: The gas mileages (in miles per gallon) for 29 cars are shown in the frequency distribution.…
A: Gas Mileage (in miles per gallon) Frequency 27-31 13 32-36 9 37-41 2 42-46 5
Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…
A: n = 22x¯ = 77.9s = 24.690% confidence interval for μ. claim : μ ≠ 100
Q: (a) What is the probability that the individual owns an iPhone? (b) If we learn that the selected…
A: Given that, No. of adult phone owners (n) = 2000 The data on age and which type of cell phone they…
Q: Find the area of the indicated region under the standard normal curve. -0.45 0 2.11 Probability z is…
A: The question is about std. normal distribution Introduction : If z is a std. normal random variab.…
Q: 1. Using the data sheet, determine if there was a difference between individuals who resistance…
A: Title: Comparison of Peak Force in Resistance-Trained and Non-Resistance-Trained Individuals…
Q: 2. Below is data on the number of vehicles involved in a fatal crash and city in California during…
A: Single-vehicle crash fatalities Two-vehicle crash fatalities LA 175 69 SD 61 19 SJ 49 19…
Q: Nina would like to estimate the difference in the mean amount of time students spend on math…
A: From the provided statement, it is interpreted that 30 students from each school are randomly…
Q: 1) Please define the concept of sample and goodness of fit tests .
A: A sample test is a statistical technique used to infer information about a population from data…
Q: It is possible to score higher than 1600 on the combined mathematics and reading portions of the…
A: Answer:- Given, The distribution of SAT scores (X) was approximately Normal with mean, μ = 1010 and…
Q: Find the coefficient of determination and interpret the result.
A: Here dependent variable (y) = Money spent Independent variable (x) = Money raised Sample size (n) =…
Q: You are given the sample mean and the population standard deviation. Use this nformation to…
A: n=72Standard deviation =13.68°Mean =82.39°
Q: Imagine that the following four sentences are questions on a survey. Which question would produce…
A: We know that :- Continuous data has an infinite number of possible values that can be…
Q: 26. Consider a discrete-time surplus process and assume that the frequency of the claims in each…
A: Given that the frequency of claims in each period is Negative Binomial with mean 1 and variance 16,…
Q: When we discuss measures of center and spread, there are certain ones that go together, and certain…
A: The standard deviation is used to describe spread when the centre is discussed in terms of the mean.…
Q: Listed below are numbers of Intermet users per 100 people and numbers of scientific award winners…
A: α=0.01 Internet users Award Winners 80.7 5.3 79.7 9.1 57.1 3.2 67.3 1.6 77.2 10.8…
Q: a. Complete the table (Use 4 decimal places when applicable) b. What percent of the people have…
A: Here given table for frequency distribution of No of Sibling . Cumulative frequency of particular…
Q: Researchers collected data on the numbers of hospital admissions resulting from motor vehicle…
A: Friday the 6th Friday the 13th 9 13 6 12 12 14 12 11 4 6 5 11 Significance level…
Q: You are given the sample mean and the population standard deviation. Use this information to…
A: The random sample of size, n=48 The sample mean, x¯=$118.91 The population standard deviation,…
Q: A time study analyst observed a repetitive work cycle performed by a worker. During the observation,…
A: PFD allowance factor =0.15 Nominal time =1.38 minutes We have to find the standard time
Q: In analyzing hits by certain bombs in a war, an area was partitioned into 568 regions, each with an…
A: The total no. of partitioned area (n) is 568 The total no. of bombs that hit the combined area (x)…
Q: Consider the linear probability model: Yi = β0 + β1Xi + Ui Furthermore, suppose that the true…
A: a) To show that E(u|X) = 0, we need to take the expectation of the regression equation and the…
Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 441 green peas…
A: From the given information, Number of green peas = 441 Number of yellow peas = 165 Total number of…
Q: Interquartile range (IQR) method for outlier detection - Table 1.8 Diameter of the Q1 Q3 IQR Lower…
A: We use the R Programming Language to solve our problem. The code used to get the answers, is…
Q: The distance of a single score from the mean - for example, the distance of your exam score from the…
A: The distance of a single score from the mean for example, the distance of your exam score from the…
Q: QUESTION 5 Which of the following best describes a confounding variable? The predictor. O A variable…
A: We need to select the option which best describes the confounding variable. Concept: A confounding…
Q: 21. Touch Therapy When she was 9 years of age, Emily Rosa did a science fair experiment in which she…
A: Solution : Given that : when she was 9 years of age. Emily Rosa did a science fair experiment in…
Q: According to the American Medical Association, the average annual of radiologists in the USA are…
A:
Q: A study wants to see if a program aimed at increasing reading accuracy works for elementary school…
A: Anova is used to measure the mean significance between three or more samples. It is a parametric…
Q: Why do we need to multiply by 2 the margin of error inorder to get 8%?
A: From the provided information, Confidence level = 90% Sample proportion (p̂) = 18% Margin of error…
Q: 42% of adults say cashews are their favorite kind of nut. You randomly select 12 adults and ask each…
A: P(say cashew are favourite nut) = p = 0.42sample size (n) = 12x = no. of adult say cashew are…
Q: ample of 30 students. The scores are given. Complete parts (a) through (c) below. 51 48 31 36 36 57…
A: 36 35 26 58 51 18 44 43 56 36 29 44 41 48 32 24 51 36 46 57 43 53 39 31 48 59 27 44 57 16 Sample…
Q: 7. A multiple regression analysis with annual profits of a pharmaceutical product as the dependent…
A: From the given information , The number of Parameters estimated is:- K = 3 ( One…
Q: The amounts of a chemical compound y that dissolved in 100 grams of water at various temperatures x…
A: From the given information, the regression equation and other values are: y^ = 4.3175+0.7175xs2 =…
Q: A study takes a SRS from a population of full-term infants. The standard deviation of birth weights…
A: Solution:- If the sample size is large (n > 30), we can use the standard normal distribution…
Step by step
Solved in 3 steps