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I have to come up with a narrative (story) that describes what the data represents and an interpretation of my statistical calculations.

I have to come up with a narrative (story) that describes what the data represents and an interpretation of my statistical calculations. I just need to help me come up with a story, I will give the calculations

A) x?= sample mean= 490.156

N= 45

S (sample standard deviation) = 69.45

95% confidence interval formula

x? ± Z0.25 (s/ ?n)

Z-tables= Z.025=1.96

Required confidence interval (469.864,510.447)

Hypothesis

H0: ? = 503

Ha: ? ? 503

x?- ?/SD/?n

where Sd is sample standard deviation equal to 69.45 and n= 45 and x?= 490.156

test statistic value is -1.241

critical value= Z.95=-1.645

As-test statistic> critical value

The null hypothesis is not rejected at 5% level of significance.

Top Answer

95% confidence interval: 469.243 <  μ  < 511.069 We are 95% confident the population mean will lie in... View the full answer

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