Exam 3 - Knewton 6 Ocean Connect knewton.com/learn/course/fa6fc690-b641-4063-9595-febe10ad5953/quiz/03795dbb-10ff-408a-827e-5ec7e4c8b9bd -7 days 0/20 QUESTION 4· POINT The speeds of vehicles traveling on a highway are normally distributed with an unknown population mean and standard deviation. A random sample of 11 vehicles is taken and results in a sample mean of 65 miles per hour and sample standard deviation of 9 miles per hour. df to.10 to.o5 to.025 to.01 to.005 1.383 1.833 2.262 2.821 3.250 10 1.372 1.812 2.228 2.764 3.169 11 1.363 1.796 2.201 2.718 3.106 12 1.356 1.782 2.179 2.681 3.055 13 1.350 1.771 2.160 2.650 3.012 Find a 90% confidence interval estimate for the population mean using the Student's t-distribution. • Round the final answers to two decimal places. Provide your answer below: We are 90% confident that the true population mean lies between and
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
After rounding to two decimal places, I got that the population mean lies between: 60.08, and 69.92. I would like to know if this answer is correct.
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