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MATH SOLVE
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Suppose that the insurance companies did do a survey. They randomly surveyed 400 drivers and found that 320 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up. Construct a 95% confidence interval for the population proportion who claim they always buckle up. What is the error bound?
General
2 months ago
Suppose that the bacteria in a colony grow unchecked according to the Law of Exponential Change. The colony starts with 1 bacterium and triples in number every 20 minutes. How many bacteria will the colony contain at the end of 24 hours?
General
2 months ago
A roulette wheel has the numbers 1 through 36, 0, and 00. A bet on three numbers pays 11 to 1 (that is, if you bet $1 and one of the three numbers you bet comes up, you get back your $1 plus another $11). How much do you expect to win with a $1 bet on three numbers?
General
2 months ago
A random sample of 157 recent donations at a certain blood bank reveals that 86 were type A blood. Does this suggest that the actual percentage of type A donations differs from 40%, the percentage of the population having type A blood? Carry out a test of the appropriate hypotheses using a significance level of 0.01. State the appropriate null and alternative hypotheses.
General
2 months ago
complete the table to determine if wavelength varies inversely with frequency...
General
2 months ago
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within two percentage points with 90% confidence, assuming that (a) he uses the estimates of 21.6% male and 19.2% female from a previous year? (b) he does not use any prior estimates?
General
2 months ago
Elliot is standing at the top of a store escalator that leads to the ground floor below. The angle of depression from the top of the escalator to the floor is 42.51 degree, and the escalator is 16 feet long. How far the top of the escalator from the ground floor? Round your answer to the nearest foot. A. 41 feetB. 17 feet C. 12 feet D. 11 feet
General
2 months ago
Please help!Options for ♣:definition of adjacent angles definition of angle bisector definition of congruencevertical angles are congruentOptions for ♦:AASASASASSSS
General
2 months ago
The lengths of nails produced in a factory are normally distributed with a mean of 6.13 centimeters and a standard deviation of 0.06 centimeters.Find the two lengths that separate the top 7% and the bottom 7%.These lengths could serve as limits used to identify which nails should be rejected.Round your answer to the nearest hundredth, if necessary.
General
2 months ago
Test the hypothesis that the average content of containers of a particular lubricant is 10 liters if the contents of a random sample of 10 containers are 10.2, 9.7, 10.1, 10.3, 10.1, 9.8, 9.9, 10.4, 10.3, and 9.8 liters. Use a 0.01 level of significance and assume that the distribution of contents is normal.
General
2 months ago
If point P is 4/7 of the distance from M to N, then point P partitions the directed line segment from M to N into a __?__ ratio. 4:1 4:3 4:7 4:11
General
2 months ago
Write an equation for the number of points, y Enrique scores on the test when he answers x questions correctly.On his first geography test, Enrique answered 3 questions correctly. On his second test, Enrique answered 7 questions correctly.
General
2 months ago
You buy a ring box as a birthday gift that is in the shape of a triangular prism. What is the least amount of wrapping paper needed to wrap the box? (My picture is above.)
General
2 months ago
Sara is trying to find an equation for a line that passes through (5, 2) and is perpendicular to 3x + 2y = 15. Explain the steps that Sara could take to determine the equation. A) Write 3x + 2y = 15 in slope-intercept form. Then, substitute the slope of that line and the point (5, 2) into the point-slope formula. B) Write 3x + 2y = 15 in slope-intercept form. Then, substitute the reciprocal of the slope of that line and the point (5, 2) into the point-slope formula. C) Write 3x + 2y = 15 in slope-intercept form. Then, substitute the opposite reciprocal of the slope of that line and the point (5, 2) into the point-slope formula. D) Write 3x + 2y = 15 in slope-intercept form. Then, substitute the opposite reciprocal of the slope of that line and the point (0, 0) into the point-slope formula.
General
2 months ago
In a rhombus, the difference of the measures of the two angles between a side and the diagonals is 32°. What are the measures of the angles of the rhombus?
General
2 months ago
What is difference In length between a 1 1/4 inch button and a 3/8 inch button
General
2 months ago
10. what is the volume of the prism to the nearest whole unit?(Picture below)11. What is volume of the triangular prism to the nearest whole unit? (Picture below)
General
2 months ago
what is the value of f(1)?
General
2 months ago
will mark brainest? Jill and Bill are the same age. Jill inherits $20,000 when she is 25, and invests it in an account earning 5% annual interest rate, compounded annually. Bill receives a $20,000 bonus at age 35, and then invests it in an account which also earns a 5% annual interest rate, compounded annually. How much more money does Jill have than Bill at age 50? A) $0 B) $10,000 C) $18,075 D) $26,149
General
2 months ago
Let f(x)=x2+5x−36 . Enter the x-intercepts of the quadratic function in the boxes.
General
2 months ago
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