My stats class tossed an exact replication of the earth back and forth and recorded how many times my finger landed on water or land. Here is our data: Land: 254 Water: 598 Construct a 95% confidence interval in stapplet. Use the first applet. Enter data, then scroll down to Inference and select a confidence interval. Use water to be success. Use your notes from 7-4 Lower bound: [Select] Upper bound: [Select]
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Step 1: The problem asks to construct a 95% confidence interval for the proportion of times the finger landed on water. Show more…
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T. L.
When 100 tacks were thrown on a table, 60 of them landed point up. Obtain a $95 \%$ confidence interval for the probability that a tack of this type lands point up. Assume independence.
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Refer to the accompanying data display that results from a simple random sample of times​ (minutes) between eruptions of the Old Faithful geyser. The confidence level of​ 95% was used. Complete parts​ (a) and​ (b) below. TInterval ​(85.74,91.76) x overbarequals88.75 Sxequals8.897431411 nequals36 a. Express the confidence interval in the format that uses the​ "less than" symbol. Round the confidence interval limits given that the original times are all rounded to one decimal place.
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