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# The Payment Time Case

• Due on 01 Dec, 2018 07:16:00
• Asked On 27 Nov, 2018 12:18:48
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Review the Payment Time Case Study and Data Set.

Develop a 700-word report including the following calculations and using the information to determine whether the new billing system has reduced the mean bill payment time:

• Assuming the standard deviation of the payment times for all payments is 4.2 days, construct a 95% confidence interval estimate to determine whether the new billing system was effective. State the interpretation of 95% confidence interval and state whether or not the billing system was effective.
• Using the 95% confidence interval, can we be 95% confident that µ ≤ 19.5 days?
• Using the 99% confidence interval, can we be 99% confident that µ ≤ 19.5 days?
• If the population mean payment time is 19.5 days, what is the probability of observing a sample mean payment time of 65 invoices less than or equal to 18.1077 days?

Format your assignment consistent with APA format.

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## [Solved] QNT 561 Week 4 The Payment Time Case

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• Submitted On 27 Nov, 2018 12:39:49
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## [Solved] The Payment Time Case

• This Solution has been Purchased 1 time
• Submitted On 02 Dec, 2018 08:06:46
Review the Payment Time Case Study and Data Set. Dev...
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