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EREN AFSAR

EREN A.

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In A man pushes a 32 -kg lawn mower using a handle inclined $40^{\circ}$ from the horizontal. He pushes with $65 \mathrm{~N}$ directed along the handle. (a) What's the mower's weight? (b) What's the normal force on the mower? (c) What's the mower's acceleration (ignoring friction)?

In A man pushes a 32 -kg lawn mower using a handle inclined $40^{\circ}$ from the horizontal. He pushes with $65 \mathrm{~N}$ directed along the handle. (a) What's the mower's weight? (b) What's the normal force on the mower? (c) What's the mower's acceleration (ignoring friction)?

Essential College Physics

The percent of persons (ages five and older) in each state who speak a language at home other than English is approximately exponentially distributed with a mean of 9.848. Suppose we randomly pick a state. a. Define the random variable. X = _________________________________. b. Is X continuous or discrete? c. X ~ ________ d. ? = ________ e. ? = ________ f. Draw a graph of the probability distribution. Label the axes. g. Find the probability that the percent is less than 12. h. Find the probability that the percent is between eight and 14. i. The percent of all individuals living in the United States who speak a language at home other than English is 13.8. i. Why is this number different from 9.848%? ii. What would make this number higher than 9.848%?

The percent of persons (ages five and older) in each state who speak a language at home other than English is approximately exponentially distributed with a mean of 9.848. Suppose we randomly pick a state. a. Define the random variable. X = _________________________________. b. Is X continuous or discrete? c. X ~ ________ d. ? = ________ e. ? = ________ f. Draw a graph of the probability distribution. Label the axes. g. Find the probability that the percent is less than 12. h. Find the probability that the percent is between eight and 14. i. The percent of all individuals living in the United States who speak a language at home other than English is 13.8. i. Why is this number different from 9.848%? ii. What would make this number higher than 9.848%?

Introductory Statistics

Continuous Random Variables

The Exponential Distribution

Questions asked

ANSWERED

Lucas Finney verified

Numerade educator

Suppose that the Giant Springs Water Co. is bottling 12oz. bottles of water and claim that their standard deviation is less than half an ounce per bottle. If they sample 24 bottles and find the sample standard deviation is 0.54 oz is there claim correct at a= 0.005. Assume the variable is normally distributed. What type of test should be used? Determine the test value.

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Prabhakar Kumar verified

Numerade educator

Suppose for an upcoming election that a national poll shows that the front runner for the Republican Party has 38% support. The local republicans believes their state is the same as the national poll. To confirm this the local republicans holds their own poll and find that 51 out of 154 support the front-runner. Determine if the hypothesis is correct at alpha= .01. Assume the variable is normally distributed. Determine the test value.

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Jon Southam verified

Numerade educator

Suppose that Cody graphs the temperature and the number of walks he's been hired to shovel. a) Calculate the correlation coefficient. (round-off your answer to 3 decimal places) b) Suppose that H0: p=0, H1: p≠0 (claim). Calculate the test value for this problem. (use the r rounded to 3 decimals & round-off this answer to 3 decimal places) c) What is the conclusion to this problem? d) Calculate what is the y-intercept (y'=a+bx) for the line of regression. (round-off your answer to 3 decimal places) e) Calculate the slope (y'=a+bx) for the line of regression. (round-off your answer to 3 decimal places) f) If the temperature is suppose to be 25° degrees how many walks is Cody predicted to shovel? (use a and b round-off to 3 decimals each and round-up your answer to the nearest integer)

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