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Nikolay [14]
1 year ago
14

The interquartile range of this data set

Mathematics
2 answers:
Natali [406]1 year ago
6 0
The interquartile range is 20 you take Q3 in the graph which is 30 and the Q1 in the graph which is 10 then you subtract Q3-Q1 so 30-10 and get 20
grandymaker [24]1 year ago
6 0

Answer:

IQR = Q3-Q1

=30-10

=20

Interquartile range = Quartile3-Q1

= 30 - 10

= 20

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Paula wants to save at least $800 for a trip. Which inequality shows the least amount she must save each month for 9 months to a
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(CO6) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is
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Answer:

(1) (4.82, 4.98)

(2) Large sample size

(3) Yes, the temperature is within the confidence interval of (37.40, 37.60)

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Step-by-step explanation:

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(2) Error margin = (t-value × standard deviation)/√sample size

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(3) mean = 37.5, sd = 0.6, n= 100, degree of freedom = n-1 = 100-1 = 99

t-value corresponding to 99 degrees of freedom and 90% confidence level is 1.6602

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(4) mean = 15.10, sd =0.08, n = 104, degree of freedom = n-1 = 104-1 = 103

t-value corresponding to 103 degrees of freedom and 97% confidence interval is 2.2006

CI = 15.10 + (2.2006×0.08)/√104 = 15.10 + 0.017 = 15.117

CI = 15.10 - (2.2006×0.08)/√104 = 15.10 - 0.017 = 15.083

CI is (15.083, 15.117)

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3 years ago
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