Use the following information to answer the question. Studies show that the level of anxiety has increased since the pandemic. The average score before the pandemic was mu equal to 10. A sample of 76 individuals surveyed in the past three months produced M=12.8 and s=6.7. Based on the sample, was there a significant increase in the average anxiety level since the pandemic started at the 5% significance level?

Q: 4)1993

A:

Q: 11) 60

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

Q: 8.20+2

A:

Q: 7)84

A: The objective of the question is solve the division.

Q: 12 X-

A: The solution is given below

Q: 4 6 68

A: Consider the given division of 668 by 4. The objective of the problem is to perform the division.

Q: 10) 21 68

A: We know that tan θ=Opposite sideAdjacent sidetan(68)=x21

Q: 9) 60

A: The figure is

Q: 33/29 b.

A:

Q: 72

A: here we will find value of x ,

Q: 18 20

A:

Q: 6)270

A: Given data:   The given expression is 270/6.     The number 270 can be written as, 270=3×90=3×2×45

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: 8 14

A:

Q: 6.3 3

A:

Q: 3) 24 12

A: We can find the value of x as below

Q: 42.1+6.9

A: Given that  42.1+6.9 Then the value of 42.1+6.9

Q: 8) 16 15

A: Answer is below

Q: 2. 14 11

A: To find x.

Q: 5. 20 52

A:

Q: 19 17 E31

A:

Q: 8 13

A:

Q: 4) 37 12

A:

Q: 11 11 4. 64

A: Given: simplify the expression

Q: 10 4 2.

A: Solution-

Q: 6. 3 (2s+5)³

A:

Q: 73

A:

Q: 2. 27

A:

Q: 4. 19 4

A:

Q: 5.1 16

A:

Q: 5) 23

A: To find The other side of the given figure.

Q: 29 33

A:

Q: - 2 4. - 3 V22 4 2/7 41M

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.