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smartest help me plz how to solve this problem
General
4 months ago
A sample of 25 cereal boxes of Granola Crunch, a generic brand of cereal, yields a mean (X¯) weight of 1.02 pounds. The goal is to construct a 95% confidence interval for the mean weight (µ) of all cereal boxes of Granola Crunch. Assume that the weight of cereal boxes is normally distributed with a population standard deviation (σ) of 0.03 pounds.
General
4 months ago
An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest circle that could fit in the square, as a shown below Show work please
General
4 months ago
Elevator Safety Example 2 referred to an elevator with a maximum capacity of 4000 lb. When rating elevators, it is common to use a 25% safety factor, so the elevator should 6-4 Basic Skills and Concepts 6-4 The Central Limit Theorem 273 actually be able to carry a load that is 25% greater than the stated limit. The maximum capacity of 4000 lb becomes 5000 lb after it is increased by 25%, so 27 adult male passengers can have a mean weight of up to 185 lb. If the elevator is loaded with 27 adult male passengers, find the probability that it is overloaded because they have a mean weight greater than 185 lb. (As in Example 2, assume that weights of males are normally distributed with a mean of 189 lb and a standard deviation of 39 lb.) Does this elevator appear to be safe?
General
4 months ago
The heights of women aged 20 – 29 in the United States are approximately Normal with mean 64.2 inches and standard deviation 2.8 inches. The heights of men aged 20 – 29 in the United States are approximately Normal with mean 69.4 inches and standard deviation 3.0 inches. What is the ????‑score for a woman 5.5 feet tall? (Enter your answer rounded to two decimal places.) ????= .64 What is the ????‑score for a man 5.5 feet tall? (Enter your answer rounded to two decimal places.) ????= -1.13 What information do the ????‑scores give that the original non‑standardized heights do not? The ????‑scores show that the woman is slightly different from the average, while the man is very different from the average. The ????‑scores show us that the woman is slightly shorter than average, while the man is much taller than average. The ????‑scores do not give us any additional information, since we already know that the man and woman have equal heights. The ???? ‑scores show us t
General
4 months ago
An article in Cancer Research [“Analyses of Litter-Matched Time-to-Response Data, with Modifications for Recovery of Interlitter Information” (1977, Vol. 37, pp. 3863–3868)] tested the tumorigenesis of a drug. Rats were randomly selected from litters and given the drug. The times of tumor appearance were recorded as follows: 101, 104, 104, 77, 89, 88, 104, 96, 82, 70, 89, 91, 39, 103, 93, 85, 104, 104, 81, 67, 104, 104, 104, 87, 104, 89, 78, 104, 86, 76, 103, 102, 80, 45, 94, 104, 104, 76, 80, 72, 73 Calculate a 95% confidence interval on the standard deviation of time until a tumor appearance. Check the assumption of normality of the population and comment on the assumptions for the confidence interval
General
4 months ago
A? twin-engined aircraft can fly 1064 miles from city A to city B in 4 hours with the wind and make the return trip in 7 hours against the wind. What is the speed of the? wind?
General
4 months ago
Avery's yard has an area of 5/4 acres, and Logan's yard has an area of 3/2 acres. What is the ratio of the area of Avery's yard to the area of Logan's yard? plz explain and show work.A. [tex]\frac{4}{5}[/tex] to 1B. [tex]\frac{5}{6}[/tex] to 1C. [tex]\frac{2}{3}[/tex] to 1D. [tex]\frac{8}{5}[/tex] to 1
General
4 months ago
Captain Jessica has a ship, the H.M.S Crimson Lynx. The ship is two furlongs from the dread pirate Ishaan and his merciless band of thieves. If her ship hasn't already been hit, Captain Jessica has probability \dfrac{2}{5} 5 2 start fraction, 2, divided by, 5, end fraction of hitting the pirate ship. If her ship has been hit, Captain Jessica will always miss. If his ship hasn't already been hit, dread pirate Ishaan has probability \dfrac{3}{8} 8 3 start fraction, 3, divided by, 8, end fraction of hitting the Captain's ship. If his ship has been hit, dread pirate Ishaan will always miss. If the Captain and the pirate each shoot once, and the Captain shoots first, what is the probability that the Captain misses the pirate ship, but the pirate hits?
General
4 months ago
how large of a sample is needed to estimate the mean of a normally distributed population for each of the following?a. ME= 5, sigma=40, alpha=0.01b. ME=10; sigma=40; alpha=0.01c. compare and comment on your answers to parts a and b.
General
4 months ago
Determine the approximate ordered pair for f(x) = g(x). the graph of two linear functions 4 times x plus 15 times y equals 400 and 20 times x minus 4 times y equals negative 20 (26, 4) (18, 4) (4, 26) (4, 18)
General
4 months ago
1. 5. What is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m
General
4 months ago
At a salon, there are nail technicians and hair stylists. The salon owner wants to expand, but can only afford to add more thansenpositions. A typical nail technician can see 10 clients per day. A typical har stylist can see 15 cients per day. The salon une hoces tobe able to see more than 100 clients per day.The new positions constraint is represented by x+ys 9, where x represents the number of nail tech cans and represents thenumber of hair stylists. Find the inequality representing the clients constraint for this situationa. 10x + 15y2 100b. 10x + 15y > 100c. 10x + 15y < 100d. 10x + 15 5 100
General
4 months ago
Find the vertex of the parabola. y= -4x^2+24x-35Answer ASAP
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4 months ago
Help please Determine if the lines that pass through the given points are parallel, perpendicular or neither. Line A: (5, 10) and (12, 6) Line B: (-2, 4) and (5, 8)
General
4 months ago
) In flying the 76 miles from Champaign to Peoria, a student pilot sets a heading that is 11° off course and maintains an average speed of 112 miles per hour. After 15 minutes, the instructor notices the course error and tells the student to correct his heading. Through what angle will the plane move to correct the heading and how many miles away is Peoria when the plane turns?
General
4 months ago
6. Give a Teacher's Solution using algebra for the followingproblem: A truck contains 1000 pounds of sand and concrete in the ratio 2 : 3. After x pounds of sand is added, the ratio of the sand and concrete becomes 4:5. Find x
General
4 months ago
12. The Opera is collecting monies in advance for ticket sales. The tickets cost $17.50 each.If they have collected $6842.50 already, then how many tickets have they sold in advance?Equation:Solution:
General
4 months ago
Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximations). PLSS Solve Both Thanks
General
4 months ago
Solve the system of equations.4x + 3y + z= -6x-3y + 2z=011x-2y + 3z = - 26
General
4 months ago
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