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MATH SOLVE
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Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Use a 0.05 significance level to test for a difference between the measurements from the two arms. What do you conclude? Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal.Right arm102101947979Left arm175169182146144
General
8 months ago
I do not get this someone help
General
8 months ago
Two researchers, Jaime and Mariya, are each constructing confidence intervals for the proportion of a population who is left-handed. They find the point estimate is 0.14. Each independently constructed a confidence interval based on the point estimate, but Jaime's interval has a lower bound of 0.049 and an upper bound of 0.191, while Mariya's interval has a lower bound of 0.079 and an upper bound of 0.201. Which interval is wrong? Why?
General
8 months ago
A laboratory scale is known to have a standard deviation (sigma) or 0.001 g in repeated weighings. Scale readings in repeated weighings are Normally distributed with mean equal to the true weight of the specimen. Three weighings of a specimen on this scale give 3.412, 3.416, and 3.414 g. A 99% confidence interval for this specimen is O A. 3.412 +-.00113 B. 3.414 +/-.00149 C. 3.414 +/-.00002 D. 3.414+-00231
General
8 months ago
how much did you invest if you earned $131.60 in interest at a rate of 4% for seven years?
General
8 months ago
in a school gym, the ratio of the number of boys to the number of girls was 4:3 . after 160 boys left the gym, the ratio became 4:5. how many girls were there in the gym?
General
8 months ago
Calculate the sum of the numbers in each row of Pascal's triangle for n = 0 to 5.a. 1,2, 4, 6, 8, 10c. 2, 4, 8, 64b. 2, 4, 8, 16, 32d. 1, 2, 4, 8, 16, 32PLEASE HELP ME
General
8 months ago
on the football team, two out of every seven players are seniors. if the team has 84 players, how many are not seniors.
General
8 months ago
solve the equation 3(3x+4)=-2(4-2x)
General
8 months ago
there were 200 tickets sold for a college game. Tickets were $4.50 for students and $9.00 for adults. The total amount was $1485. How much of each ticket was sold. Show steps
General
8 months ago
The apr of jalen's savings account is 4.4%, and interest is compounded semiannually. if the principal in jalen's savings account was $3300 for an entire year, what will be the balance of his account after all the interest is paid for the year?
General
8 months ago
In a certain town, 22% of voters favor a given ballot measure. for groups of 21 voters, find the variance for the number who favor the measure.a. 1.9b. 13c. 4.6d. 3.6
General
8 months ago
Which expression can be used to convert 22 Australian dollars to US dollars?Assume 1.2 Australian dollars equals 1 US dollar.$22 AUD × $22 AUD × $1.20 AUD × $1.20 AUD × pls help need awnwer quick
General
8 months ago
What is the element a^23 in matrix A? A=8 -4 -3 3 -9 -5 -8 8 8
General
8 months ago
Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which statement comparing the two swimmers is accurate?1 mile 1,609 metersAlina swims about 0.7 miles per hour faster than Talia.Talia swims about 0.7 miles per hour faster than Alina.Alina swims about 1.5 miles per hour faster than Talia.Talia swims about 1.5 miles per hour faster than Alina. pls help
General
8 months ago
Jeff is baking a cake. The recipe says that he has to mix 32 grams of vanilla powder to the flour. Jeff knows that 1 cup of that particular vanilla powder has a mass of 128 grams. He added two over three of a cup of vanilla powder to the flour. Should Jeff add more vanilla powder to make the exact recipe, or did he go over and by what amount?
General
8 months ago
A waffle cone for ice cream has a diameter of 8 centimeters and a height of 12 centimeters. What is the volume of the cone, in cubic centimeters?A. 64π cubic centimetersB. 32π cubic centimetersc. 256π cubic centimetersD. 192π cubic centimetersCasandra finds a treasure chest packed with metallic coins. The chest has a volume of 0.25 cubic meters. The coins have a combined mass of 4825 kg. Hoping to find gold, she calculates the density to determine the metal of the coins.What kind of metal are the coins made of?Bronze (8700 kg per cubic meter)Silver (10500 kg per cubic meter)Lead (11300 kg per cubic meter)Gold (19300 kg per cubic meter)A cylinder with radius 3 units is shown. Its volume is 86 cubic units.Find the height of the cylinder.Use 3.14 for π and round your final answer to the nearest hundredth.
General
8 months ago
What is the slope of the line passing through the points (−1, 3) and (4, −7) ?A. −2B. 3/4C. − 4/3D. 2
General
8 months ago
Sonia graphs the equations y = –x2 + 4x and y = x – 4 to solve the equation –x2 + 4x = x – What are the solutions of –x2 + 4x = x – 4?
General
8 months ago
What radius of a circle is required to inscribe an equilateral triangle with an area of 15.588 in2 and an altitude of 5.196 in? (round to nearest tenth)
General
8 months ago
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