A Methods and Measurements Analyst for Timepiece,Inc.needs to develop a time standard for the task of attaching a watch to a wristband.In a preliminary study,he observed one of his employees perform this task five times,with the following results: 
How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is one second? The standard deviation of task times is 5 seconds.
Definitions:
Inventory Turnover
A proportion indicating the frequency at which a company's stock is sold and replenished during a given timeframe.
Gross Profit Rate
A financial metric that indicates the percentage of revenue that exceeds the cost of goods sold, reflecting a company's operational efficiency.
Accounts Receivable Turnover
A financial metric indicating how many times a company collects its average accounts receivable balance in a period.
Price-earnings Ratio
A valuation metric used to measure a company's current share price relative to its per-share earnings.
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