1. Identify what is the trial in this question and state, with explanation, why

Question

1. Identify what is the trial in this question and state, with explanation, why it is the trial for this question.

2. identify the the outcomes for the trial and why those outcomes were chosen.

A bank has an ATM installed inside the bank, and it is available to its customers only from 7 AM number of transactions made on this ATM are the same for each of the 5 days (Monday through Friday) of the week. She randomly selected one week and counted the number of transactions made on this ATM on each of the 5 days during this week. The information she obtained is given in the following table, where the number of users represents the number of transactions on this AT to 6 PM Monday through Friday. The manager of the bank wanted to investigate if the M on these days. For convenience, we will refer to these transactions as "people" or "users." Day Monday Tuesday Wednesday Thursday Friday Number of users 253 197 204 279 267 At the 1% level of significance, can we reject the null hypothesis that the number of people who use this ATM each of the 5 days of the week is the same? Assume that this week is typ- ical of all weeks in regard to the use of this ATM.

Explanation / Answer

Hello,

Hope you are keeping well.

Here we are testing whether the number of people who use this ATM each of the 5 days of the week is the same.

Therefore the Alternative Hypothesiw will be the that it will be different.

Now in this case,

P value and statistical significance:
  The two-tailed P value equals 0.0001
  By conventional criteria, this difference is considered to be extremely statistically significant.

Confidence interval:
The hypothetical mean is 0.00
The actual mean is 240.00
The difference between these two values is 240.00
The   95% confidence interval of this difference:
From 193.69 to 286.31

Intermediate values used in calculations:
  t = 14.3891
  df = 4
  standard error of difference = 16.679

Hence we get the required calculations.

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