QUESTION 17 Suppose 1 in 5 JwU students own their own car. If four students are...
QUESTION 18 Which of the following variables is NOT discrete? O A. the number of Oscar nominations Meryl Streep has received O B. the number of shoes in a shoe store O C. the number of women in a Statistics class D. the number of ounces in your coffee
QUESTION 16 Suppose 1 in 5 (1/5) JWU students own their own car. If four students are randomly selected, what is the probability that all four own their car? 。A. 1 /625 O B. 4/20 O C A/s O D. 1/20
D Question 4 1 pts It has been found that 72% of college students own a car. If 40 students are selected at random, what is the variance for the number of them who own their car? 3.347 O 11.2 2.840 28.8 8.064 5.367
D | Question 1 5 pts Suppose you had data on output per worker for four factories. You want to compare productivity across these four factories, and perhaps close one down. The graph best suited to inform this comparison O are boxplots O are a series of line plots O is a histogram 0 is a scatter diagram D Question 2 5 pts In a regression analysis predicting car accidents using the day of the week, the p-value for the...
Question 1 ASW, a regional shoe chain, has recently launched an online store. Sales via the Internet have been sluggish compared to their brick and mortar stores, and management suspects that its regular customers have concerns regarding the security of online transactions. To determine if this is the case, they plan to survey a random sample of their regular customers. Under consideration are several plans for selecting the sample. Name the sampling strategy for each. Plan A - Regular customers...
Page 1 Question 1 Suppose we take repeated random samples of size 20 from a population with a Select all that apply. mean of 60 and a standard deviation of 8. Which of the following statements is 10 points true about the sampling distribution of the sample mean (x)? Check all that apply. A. The distribution is normal regardless of the shape of the population distribution, because the sample size is large enough. B. The distribution will be normal as...