Suppose that the time required to complete a 1040R tax form is normally dismbited with a...
Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 10 minutes. What proportion of 1040R tax forms will be completed in more than 102 minutes? Round your answer to at least four decimal places X
D Incorrect Your answer is incorrect. Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 15 minutes. What proportion of 1040R tax forms will be completed in at most 81 minutes? Round your answer to at least four decimal places. E 0.8980 5 ?
5 6 7 8 ✓9 F 10 ✓ 11 Incorrect Your answer is incorrect. Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 15 minutes. What proportion of 1040R tax forms will be completed in at most 81 minutes? Round your answer to at least four decimal places. 0.1020 X 5 2
Homework 14 Question 6 of 11 (1 point) Question Attempt: 1 of Unlimited EN 5 6 7 8 - 10 11 Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 15 minutes. What proportion of 10400 tax forms will be completed in at most 81 minutes? Round your answer to at least four decimal places. 0
Answer question 1 & 2 asap please Question 1 Let Z be a standard normal random variable. Calculate the following probabilities using the calculator provided. Round your responses to at least three decimal places. ? P(Z > -1.46) P(Z < 0.63) - 0 P(-0.84 <2<2.10) - 0 Question 2 Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 20 minutes. What proportion of 1040R...
The time required for a citizen to complete the 2000 U.S. Census "long" form is normally distributed with a mean of 40 minutes and a population standard deviation of 10 minutes. What proportion of the citizens will require less than one hour?
Let x denote the time taken to run a road race. Suppose x is approximately normally distributed with a mean of 190 minutes and a standard deviation of 21 minutes. If one runner is selected at random, what is the probability that this runner will complete this road race in 221 to 240 minutes? Round your answer to four decimal places.
Let x denote the time taken to run a road race. Suppose x is approximately normally distributed with a mean of 190 minutes and a standard deviation of 21 minutes. If one runner is selected at random, what is the probability that this runner will complete this road race in 219 to 236 minutes? Round your answer to four decimal places. P =
The time it takes to complete this assignment varies Normally with mean 20 minutes and standard deviation 2.6 minutes. What is the probability that it takes you at least 21 minutes to complete this assignment? CAREFUL: YOU NEED TO USE THE TABLE TO GET THIS QUESTION CORRECT. Round your z-score to 2 decimal places before using the table.
The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 21 minutes and 10 minutes, respectively. [You may find it useful to reference the z table.] a. Find the probability that a randomly picked assembly takes between 13 and 22 minutes. (Round " value to 2 decimal places and final answer to 4 decimal places. Probability b. It is unusual for the assembly time to be above 35 minutes or below...