A researcher is interested in finding a 98% confidence interval for the mean number of times per day that college students text. The study included 146 students who averaged 36.3 texts per day. The standard deviation was 22.7 texts. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a zv distribution. b. With 98% confidence the population mean number of texts per day is between and texts. c. If many groups of 146 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population number of texts per day and about percent will not contain the true population mean number of texts per day.

Q: There are three consecutive odd integers. Three times the largest is seven times the smallest. What…

A: Please find the solution in the attachment

Q: +2 S₁² S²3²¹ y²e²dxdy = f₁² y²dy ſ² e² dx

A: Given double integration ∫12∫34y2exdxdy

Q: If a₁ = 4 and an = 22, find $10.

A:

Q: What is the answer for 19, 36, and 43?

A: Note that : Since you have posted multiple questions, we will provide the solution only to the first…

Q: John does five push-ups on the first day of a 30 day month and then increases the number of push-ups…

A:

Q: Sophie is working at a hair salon and building a tool kit. There are 8 hair dryers and 10…

A:

Q: Use each number 26, 27, 28, 29, 30, 31, 32, 33, and 34 once.

A:

Q: the store received 54 new books to place on 6 displays. The same number of books will be placed on…

A: To find out how many books will be placed on each display, you can divide the total number of new…

Q: r the questions. I just need each question answered

A: Temperature (oC) Corrosion (mm/yr.) 26.6 1.58 26 1.45 27.4 1.13 21.7 0.96 14.9 0.99 11.3…

Q: how much is 2*2

A: The question is asking for the product of 2 and 2.

Q: 2. Plot the point, (4,) in polar coordinates. Find other polar coordinates (r, 0) of the point for…

A:

Q: 1000 fishes were caught, tagged and released back into the water. A month later, out of 500 fishes,…

A: Let there are x fishes in the lake.  Given that 1000 fishes were caught, tagged.    After a month…

Q: a; = 12, a, = -48, find r and a,

A:

Q: Which of the following graphs would represent the radical function f(x)=√√√x+4-2? --4-2 6 -8-6-4-2 T…

A: Consider the function

Q: 0.02x, - 0.05x,= -0.19 0.03x, +0.04x,=0.52 Select one: a. X,= 0 X,=7 b. x, = 8 X,=7 C. X, = 8 X,=0…

A: Given:     To determine: value of x1 and x2

Q: You are asked to make apple pies for the holidays . Each pie required 6 apples. How many apples will…

A: For the following problem,

Q: Evaluate. 417! 315! Simplify your answer as much as possible.

A: In general denotation, the factorial term, n! implies the product of all non-negative integer values…

Q: Admission to a baseball game is $3.00$⁢3.00 for general admission and $7.00$⁢7.00 for reserved…

A: Admission to a baseball game is $3.00 for general admission and $7.00 for reserved seats. The…

Q: R S 16 T. 15 30 Q RS %3D P.

A: Given : PS is parallel to QR TP = 15TS = 16PQ = 30

Q: there are 14 coins in your pocket that are either quarters or nickles. they total 2.50$. how many of…

A: let number of quaters are x let number of nickles are y given total coins are 14 there for…

Q: need

A: If he posts cards at each table for the customer, then they will fill out the cards according to the…

Permutations and Combinations

If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.

Counting Theory

The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.