3 years ago

PLEASE HELP!!!! Thank you SO MUCH. Explain your answer

Mathematics

1 answer:

abruzzese [7]3 years ago

8 0

It's 8 because the number in front of the variable is the slope, while the past 30 is the y intercept

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3 years ago

Consider the following hypothesis test H0 p 20 Ha p 20 A sample of 400 provided a sample proportion p 175 a Compute the value of

Bogdan [553]

Answer:

a) -1.25

b) 0.2112

c) -1.96

Step-by-step explanation:

Data provided in the question:

Sample size, n = 400

H0 : p = 20

$\bar{p}$ = 175

Now,

a) The test statistic is given as:

Z = $\frac{(\bar{p}-p)}{\sqrt{\frac{p(1-p)}{n}}}$

on substituting the respective values, we get

Z = $\frac{(0.175-0.2)}{\sqrt{\frac{0.2\times0.8}{400}}}$

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Now from the standard normal table

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Thus,

p-value = 2 × 1056 = 0.2112

c) for a = 0.05,

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3 years ago

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ELEN [110]

Answer:

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