Math Answers

A new sneaker claims that it can make male athletes jump higher. A sample of 54 male athletes were asked to jump once with their own sneakers on and once wearing the new sneakers. The average jump increased by 0.98 inches with the new sneakers with a standard deviation of 1.22 inches. What is the standard error of the 95% confidence interval for the average jump increase?

There are hundreds of apples on the trees, so you randomly choose just 45 apples and get a mean weight of 89.05 grams with a standard deviation of 4.43 grams. Assuming that the weight of the apples is normally distributed, what is the standard error of the 90% confidence interval for the mean weight of the apples

Observe yourself in a day. find out how many Hours you spend in the following activities: House chores answering learning modules,Planting/Gardening, Using Social media,listening to music,watching television,and sleeping. Record your data. construct a probability Distribution, then compute the mean, variance and standards deviation that You made.

Between z = 2.12 and z = -2.12

Write the expression for the following. z is divided by -9 and then 8 is suntracted from the result

He wants to know how to identify the regions under the normal curve corresponding to different standard normal values. Your friend will send a picture of a normal curve with the corresponding area, and he asks you favor to explain each picture on how to obtain the value of the shaded part of the normal curves. Here is the screenshot of the

pictures.

the first image is P(z>2.19) , probability is 11.7%

second image P(-2.56<z<1.96), probability is 96.98%

Check the limit of the function f(x,y) = 3x^2y/(x^2 + y^2) at origin exist or not

supposed 100 refrigerator were manufactured during a day. ninety five operated perfectly and 5 had atleast one defect. a sample of four is selected at random. using the hypergeometric distribution formula, find the probability that 8 of the 10 will operate perfectly?

1. Write the following sentences in the form of if... then and then find the inverse, converse,

and contrapositive [8]

i) You can become successful and happy unless you lead a lazy life.

ii) We enter the password or we click on the forget password button is necessary for

us to login into the system and create a user profile.

2. With all the steps find out if the following system specifications are consistent or

not- [7]

i) If you study well, then you will get a good grade.

ii) We did all the assignments is necessary for us to get a good grade.

iii) We didn’t do all the assignments.

3. Use any of the two proof methods to prove the following- [5]

∼((∼a ∧ b) ∨ (∼a ∧ ∼b)) ∨ (a ∧ b) ≡ a

A rental home on EWD apartelle rents for 1,000.00 a night for the first three nights, 900.00 for the next three nights, and 800.00 a night for each remaining night. The total cost T is a function of the number of night's n that a guest stays.

Create a function model defined