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Salsk061 [2.6K]
2 years ago
7

Hypotheses: p=.5 vs p NE .5 ; Sample data: p=28/40= .70 with n=40 Round the p-value to three decimal places.

Mathematics
1 answer:
jeka57 [31]2 years ago
7 0

Answer:

hahahahahaha yes hnjoo

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Determine the equation of the inverse of:<br> f(x) = 5x^2+ 80x – 15
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what interest rate is the local credit union giving you on a car loan of 25,000 for 5 years if they will collect 1500 in interes
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1.2%

Step-by-step explanation:

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Can someone clearly explain and workout Q19? Much appreciated
Anna007 [38]
The x coefficient is 2
Take half of 2 to get 2/2 = 1
Square 1 to get 1^2 = 1

Add and subtract 1 to the expression. This is the same as adding 0. 

x^2 + 2x + 2
x^2 + 2x + 2 + 0
x^2 + 2x + 2 + (1-1)
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3 years ago
Please help me with this I’m stuck and I’ll write a lot of points
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b:100'

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Step-by-step explanation:

5 0
3 years ago
In March 2015, a Nielsen global online survey "found that consumers are increasingly willing to pay more for socially responsibl
Veseljchak [2.6K]

Answer:

For this case the parameter of interest is given by:

p who represent the true proportion of respondents said that they were willing to pay more for products and services from companies who are committed to positive social and environmental impact

For this case we have an estimation given for this parameter. The estimation comes from a sample of 30000 people selected in 60 countries and they got:

\hat p = 0.66

This value represent the best estimator for the true proportion since is an unbiased estimator of the real parameter:

E(\hat p) = p

Step-by-step explanation:

For this case the parameter of interest is given by:

p who represent the true proportion of respondents said that they were willing to pay more for products and services from companies who are committed to positive social and environmental impact

For this case we have an estimation given for this parameter. The estimation comes from a sample of 30000 people selected in 60 countries and they got:

\hat p = 0.66

This value represent the best estimator for the true proportion since is an unbiased estimator of the real parameter:

E(\hat p) = p

For this case if we want to test if the population proportion is equal to an specified value we can use the one sample z test for a proportion:

Null hypothesis:p=p_0  

Alternative hypothesis:p \neq p_o  

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

6 0
3 years ago
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