Is the strep virus getting harder or easier to heal? Pediatricians are interested in studying the aver- age length of time patients with strep are running fever while on antibiotics. In previous years, the average length of time patients ran fever with strep while on antibiotics was 1.8 days. A random sample of forty-six recent patients with strep ran fever while on antibiotics for an average of 2.3 days with standard deviation 1.2. At the 5% significance level, can pediatricians conclude that the average amount of time patients with strep run fever while on antibiotics has changed? Assume the random variable has a normal distribution.

Q: An object moves with velocity as given in the graph below (in ft/sec). How far did the object travel…

A: Let's find distance of objects travel from t=0 to t=45.

Q: 11) 60

A: Here I am attaching image so that you understand each and every step.

Q: Evaluate. 5(41)

A: We need to evaluate the value of 5(4!)

Q: 1. 2. 3.

A:

Q: 72

A: here we will find value of x ,

Q: 4 11  ✕  5 9

A: Consider the given expression as 411×59. 411×59=4×511×9=2099

Q: 62 a,b,c

A:

Q: sing the geometry of the graph ,evalvate the definite integrals.

A: As this is a multiple subpart question according to the Bartleby Answering rule, only first three…

Q: 19 14.3

A:

Q: 6.3 3

A:

Q: 3) 24 12

A: We can find the value of x as below

Q: 1805

A:

Q: 12 wikon 3.

A:

Q: 15 17 9.

A: We have to find b

Q: 부 18 13)

A: We can make it easier for you.

Q: Diagonalize the following matrix.

A:

Q: 2. 27

A:

Q: 6. 8.

A: Pythagorean Theorem:                  Pythagoras theorem states that  "In right angled triangle ,…

Q: 5.1 16

A:

Q: The columns of Q were obtained by applying the Gram-Schmidt process to the columns of A. Find an…

A: Solution by using Gram-Schmidt process as follows :

Q: —5л 6.

A:

Q: Let A(x) represent the area bounded by the graph, the horizontal axis, and the vertical lines at t =…

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.