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Both of the following lists of n 8 data values have a mean of 20:
List 1: 10, 10, 10, 10, 30, 30, 30, 30
List 2: 10, 15, 19, 20, 20, 21, 25, 30
Draw a dotplot comparing the two data lists and explain how the plot shows that the standard deviation for List 1 is greater than the standard deviation for List 2.
13 A company that supplies ready-mix concrete receives, on average, six orders per day. (a) What is the probability that, on a given day:
a multinomial experiment produced the following resultscategory123frequency12887185the null hypotheses is h0 p10.30
a retailer is looking to evaluate its customer service. management has determined that if the retailer wants to stay
Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 100 orders revealed that 82 were delivered within the promised time.
The standard deviation of test scores on a certain achievement test is 11.4. A random sample of 100 scores on this test had a mean of 71.2. Based on this sample, find a 90% confidence interval for the true mean of all scores. Complete the below:
1. Develop the correlation matrix showing the correlation between all possible pairs of variables. Test statistically to determine which independent variables are significantly correlated with the dependent variable, book sales. Use a significance..
create a bid to build a wall
We select four flights from yesterday for study. What is the likelihood all four of the selected flights arrived within 15 minutes of the scheduled time?
suppose you have a big vat of balls and that 70 of the balls are green and 30 of the balls are red. suppose you
a company wished to study the effectiveness of a coffee break on productivity of its workers. the productiveness of
The following data are numbers of color television sets manufactured per day at a given plant:- Draw a frequency polygon and an ogive for these data.
The president of the United States is thought to have a positive approval rating of 58% of the people at a certain time. In a random sample of 1200 people, what is the approximate probability that the number of positive approvals will be at least ..
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