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? What is the null hypothesis? mu equal to 12.8 M equal to 10 mu equal to 10 O M equal to 12.8

Q: 8 15

A:

Q: 5.78+9.1

A: We have given that,  5.78+9.1 We will find the addition of the given values?

Q: 6.4 3

A:

Q: 2) 36³x=¹

A:

Q: 4 11  ✕  5 9

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

Q: 75 17

A: Given triangle is right angle triangle :

Q: 62 a,b,c

A:

Q: 4root2*4root2

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: 74.1 6.

A:

Q: 12 wikon 3.

A:

Q: 40 10

A:

Q: 6   9,171.6

A:

Q: Expand (a −b)4

A:

Q: Identify the coordinates of the point in polar form based upon the given conditions. Use pi for T. r…

A: We will evaluate the required value.

Q: 4. Fill in the following contingency table with the number of observations that fall into each com-…

A: x1 = number of colored oranges from Skittles brand = 77 x2 = number of colored oranges from M &…

Q: 38 10

A:

Q: 1 19. 2

A:

Q: 8 13

A:

Q: elow is an incomplete probability model showing the likelihood of selecting a marble from a way.…

A: Second option is correct 3/10

Q: 18 16

A: The objective is to find the value of x :  In the  given right triangle , Perpendicular = 16…

Q: 53. Faxt3

A: Given that, xa-1=ax+3 We need to solve it for x.

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.