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Sliva [168]
2 years ago
10

Coldstone Creamery has a variety of different ice-cream flavors that they offer, and they have a variety of different serving si

zes as well. An employee at Coldstone wanted to see if there was a relationship between a customers favorite flavor (vanilla, chocolate, or strawberry) and what serving size they ordered (small, medium, or large). He surveyed 100 customers and recorded both their favorite flavor and their preferred serving size. What are the appropriate null and alternative hypotheses?
Mathematics
1 answer:
Jobisdone [24]2 years ago
5 0

Answer:

H0 : flavor and serving size are independent

H1: Flavor and serving size are not independent

Step-by-step explanation:

The claim or hypothesis is to test if there is a relationship between the different types of flavor (vanilla, strawberry and chocolate) and the size (large, medium and. Small) being ordered. This is the the Alternative hypothesis, in other words to establish that flavor type and size are not independent, (that is the two variables are correlated).

The Null hypothesis will be the opposite of the alternative, establish that both variables are independent.

Hence ;

Null hypothesis ; H0 : flavor and serving size are independent

Alternative ; H1: Flavor and serving size are not independent

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Answer:

The x-intercept is where the line crosses through the x-axis while y-intercept is when it crosses the y-axis,

1)x-intercept:4

y-intercept:2

2)x-intercept:-1

y-intercept:4

3)x-intercept:-3

y-intercept:3

hope this helps :)

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3 years ago
Describe the strength and sign of the relationship you expect for each pair of variables. Explain your reasoning.
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Answer:

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Step-by-step explanation:

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Suppose a system of two linear equations has one solution. What must be true about the graphs of the two equations?
malfutka [58]
They should both have the same solution?
8 0
2 years ago
Read 2 more answers
A freshly inoculated bacterial culture of Streptococcus contains 100 cells. When the culture is checked 60 minutes later, it is
Luba_88 [7]

Answer:

P(t) = 100e^{0.0251t}

The doubling time is of 27.65 minutes.

Step-by-step explanation:

Exponential equation of growth:

The exponential equation for population growth is given by:

P(t) = P(0)e^{kt}

In which P(0) is the initial value and k is the growth rate.

A freshly inoculated bacterial culture of Streptococcus contains 100 cells.

This means that P(0) = 100. So

P(t) = 100e^{kt}

When the culture is checked 60 minutes later, it is determined that there are 450 cells present.

This means that P(60) = 450, and we use this to find k. So

450 = 100e^{60k}

e^{60k} = 4.5

\ln{e^{60k}} = \ln{4.5}

60k = \ln{4.5}

k = \frac{\ln{4.5}}{60}

k = 0.0251

So

P(t) = 100e^{0.0251t}

Doubling time:

This is t for which P(t) = 2P(0) = 200. So

200 = 100e^{0.0251t}

e^{0.0251t} = 2

\ln{e^{0.0251t}} = \ln{2}

0.0251t = \ln{2}

t = \frac{\ln{2}}{0.0251}

t = 27.65

The doubling time is of 27.65 minutes.

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3 years ago
HIGH POINT QUESTION
Lelu [443]

Answer:

Reflection in the x-axis

Step-by-step explanation:

If the point (x, y) of the shape is rotated 180° about the origin, it will be transformed into the point (-x, -y).

If the point (-x, -y) is reflected in the Y-axis, it will be transformed into the point (x, -y). This transformation is equivalent to the reflection of (x, y) in the x-axis.

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3 years ago
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