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2 years ago

I need help with #6.

Mathematics

1 answer:

Vitek1552 [10]2 years ago

8 0

Answer:

5.wy

6.?

7.?

Step-by-step explanation:

sorry i dont have that book

maybe too the other

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A study by Consumer Reports showed that 64% of supermarket shoppers believe supermarket brands to be as good as national name br

Marianna [84]

Answer:

The calculated value |Z| = |-2.5| >2.326 at 0.05 level of significance

The alternative hypothesis is accepted at a 0.05 level of significance

The manager of Publix in Clemson believes 64% is too high for his own store

Step-by-step explanation:

Step:-1

Given that the consumer Reports showed that 64% of supermarket shoppers.

Given that the population proportion

P = 0.64

Given that random sample size 'n' = 100

Given that 52 believe the supermarket brands were as good as the national brands.

sample proportion

$p^{-} = \frac{x}{n} = \frac{52}{100} = 0.52$

Step:-2

Null hypothesis: The manager of the Publix in Clemson believes 64% is too low for his own store

μ < 0.64

Alternative Hypothesis:H₁:μ > 0.64

Test statistic

$Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }$

$Z = \frac{0.52-0.64}{\sqrt{\frac{0.64 X 0.36}{100} } }$

Z = -2.5

Level of significance = 0.05

Z₀.₀₅ = 2.326

The calculated value |Z| = |-2.5| >2.326 at 0.05 level of significance

Final answer:-

The null hypothesis is rejected at a 0.05 level of significance

The alternative hypothesis is accepted at a 0.05 level of significance

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3 years ago

Choose the correct solution to 2x² - 7x = -5

anyanavicka [17]

Answer:

Step-by-step explanation:

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3 years ago

Hi, im 13 years old, im responsible, and have a deep love for horses. Some tips on how to persuade my parents that i will be res

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Answer:

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Step-by-step explanation:

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3 years ago

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What is the x-intercept of y=40x+70

AysviL [449]

At th x-intercept y=o

∴40x + 70 = 0
40x = -70
x = -70/40
x = -1.75

x intercepr = (-1.75,0)

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3 years ago

An expression involves subtracting two numbers from a positive number. Under what circumstances with the value expression be neg

Svetach [21]

So (positive integer)-x-y can be negative
so to get a negative number as your result/answer, x+y must be greater than (positve integer) so for example

lets say (positive integer)=8
x+y must be greater than 8 to make the equation negative so
example
x=5
y=4
x+y=9
8-9=-1

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3 years ago

I need help with #6​.

I need help with #6.