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The mean diastolic blood pressure for a random sample of 60

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The mean diastolic blood pressure for a random sample of 60 style=”color:rgb(0,0,0);”> people was 87 millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be 8 millimeters of mercury, find a 90% confidence interval for the true mean diastolic blood pressure of all people. Then complete the table below.Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. 
What is the lower limit of the 90% confidence interval?What is the upper limit of the 90% confidence interval?

 
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The only thing I can calculate is x bar= 92.8. How do I get s and the limits and can I get s on excel

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71 107 126 129 60 64 I don’t know how to get s= I also do not know how to get the E, margin of

error lower limit and upper limit. The only thing I can calculate is x bar= 92.8. How do I get s and the limits and can I get s on excel?

 
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Graph the line with slope

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Graph the line with slope style=”color:rgb(0,0,0);”> −2 passing through the point , 4−3.

 
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Assuming that the population numbers are relatively accurate

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Assuming that the population numbers are relatively accurate, compute the deaths per 1000 people for age group in

1980 . Do not round your answer to the nearest whole number, provide at least 2 decimal places. The total population in 1980 was 226,540,000 and total death count was 1,989,841…for age group 15-24 the population was 42,475,000 and total death count was 49,027 what is the death count per 1000 people for the age group

 
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