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: 11 7. Evaluate

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Q: 30 Evaluate (1 + i)

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Q: 5+45(669=

A: The given expression is 5+45669. Compute the value as follows.

Q: What is the probability of drawing a face card (Jack, Queen, or King) or a diamond from a standard…

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Q: 2) 36³x=¹

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Q: 8x) dr

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Q: In Grade 1l-Einstein there are 49 students, where there are forty-one female students. Find the…

A: We Know that  Ratio is the quantitative relation between two amounts showing the number of times one…

Q: (369) 34 / 3 * 9 +12 / 4 * 5

A: Given,             369343*9+124*5

Q: 9) 60

A: The figure is

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: 3. V(3437)3 + 10215

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Q: Find the Funetion

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Q: *1.5.11 Add. - 4+(-5) = 4 + (-5) =

A: Introduction: Integers are whole numbers (that is, numbers with no fractions) that include negative…

Q: 4. Expand and simplify (2x + 3)*

A: We have to expand and simplify the following expression: . We will apply the binomial theorem to…

Q: 3) 24 12

A: We can find the value of x as below

Q: 2šr+e* dr

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Q: 198-33

A: Given: 198-33

Q: what is five tmes 2

A: Five time 2 means multiplication of 5 and 2

Q: 12 wikon 3.

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Q: {A €R?x2 | tr(A) = 0} | tr(A) — 0}

A: Here we take a general matrix of the given set then find the basis.

Q: 58)1,325

A: Quotient is 22 Remainder is 49

Q: 20) 14 X 4

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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: 14 1

A: Given triangle is What is another side length?

Q: {n fan c) (wp

A:

Q: Evaluate o(7000).

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Q: 1*10+8*1=?

A: the given expression is: we have to find the value of the given expression.

Q: 9/3 7/3 +. 9.

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Q: —5л 6.

A:

Q: A is a 4x3 matrix, what is the largest possible dimension of the row space of A? If A is a 3x4…

A: If A is a 4×3 matrix, then we need to find the largest possible dimension of the row space of A.…

Q: 4x 17) 413

A: Given :4x4y24y3

Q: Find all positive integers n for which n1º +1 is divisible by 10.

A:

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.