When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected to attain about 60% of their maximum heart rate. For 20-year-olds, this rate is approximately 120 bpm. A simple random sample of fourty one 20-year-olds was taken, and the sample mean was found to be 107 bpm with a variance of 9000 bpm. Researchers wonder if this is evidence to conclude that the expected level is actually lower than 120 bpm. To determine this, we test the following hypotheses: Ho:H Z 120, Ha : µ < 120

Q: sorry can you write it out in pen or pencil please

A: Given that We have to find a ..Mean b..Standard deviation c...Tally Chart

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Q: 2) A vendor has learned that, by pricing hot dogs at $ 1.25, sales will reach 119 hot dogs per day.…

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A: It is known that, the solutions of the equation

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A: k= 3 Treatments or groups Each group has 6 observation n=3*6= 18 Total observation SSTr= 1924 Sum of…

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A: Draw the triangle

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A: Step 1:

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Q: 2. y=x,Y=0,X=2, X=3

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Q: Can you help me with Practice Problem, Thank you.

A: Step 1: Step 2: Step 3: Step 4:

Q: Please answer question number 13.

A: First we will solve the integral by Riemann sum We know that ∫abfxdx=limn→∞∑i=1nfxi⋅Δx, where…

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A: 9) P(Z &lt; 0.44) = 0.670031(Using Excel =NORM.S.DIST(0.44,TRUE))   10) P(Z &gt;-1.04) = 1 - P( Z…

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.