Statistics > QUESTIONS & ANSWERS > Chamberlain College of Nursing Week 5 Quiz Statistics MISC (All)

# Chamberlain College of Nursing Week 5 Quiz Statistics MISC

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A statistics student is trying to decide whether she should take a gamble and play Bingo. The average Bingo player earns $9 per game, distributed normally, with a population standard deviation of$8... . If a sample of 25 Bingo players are selected at random from the population, select the expected mean of the sampling distribution and the standard deviation of the sampling distribution below. Well done! You got it right.  σx¯=$0.32   σx¯=$8   σx¯=$1.60   μx¯=$9   μx¯=$1.80   μx¯=$0.36  Answer Explanation Correct answer: σx¯=$1.60 μx¯=$9 The standard deviation of the sampling distribution is: σx¯=σn−−√=$825−−√=$1.60 When the distribution is normal the mean of the sampling distribution is equal to the mean of the population μx¯=μ Question A well known social media company is looking to expand their online presence by creating another platform. They know that they current average 2,500,000 users each day, with a standard deviation of 625,000 users. If they randomly sample 50 days to analyze the use of their existing technology, identify each of the following, rounding to the nearest whole number if necessary: Answer 1: Not quite - review the answer explanation to help get the next one. mu is equal to$\mu=$μ= 2 comma 500 comma 000$$2,500,0002 comma 500 comma 000 - correct users sigma is equal to\sigma=σ= 625 comma 000$$625,000625 comma 000 - correct users n is equal to$n=$n= 50$$5050 - correct mu sub line segment x is equal to \mu_{\overline{x}}=μghx= 625 comma 00050 625,00050625 comma 00050 - incorrect users sigma sub line segment x is equal to\sigma_{\overline{x}}=σghx= 88 comma 388$$88,38888 comma 388 - correct users response - incorrect Correct answers: Answer 2: That's not right - let's review the answer. mu is equal to$\mu=$μ= 2 comma 500 comma 000$$2,500,0002 comma 500 comma 000 - correct users sigma is equal to\sigma=σ= 625 comma 000$$625,000625 comma 000 - correct users n is equal to$n=$n= 50$$5050 - correct mu sub line segment x is equal to \mu_{\overline{x}}=μghx= 625 comma 00050 625,00050625 comma 00050 - incorrect users sigma sub line segment x is equal to\sigma_{\overline{x}}=σghx= 88 comma 388$$88,38888 comma 388 - correct users response - incorrect Correct answers: Answer Explanation mu is equal to$\mu=$μ= 1$$1 - no response given users sigma is equal to\sigma=σ= 2$$2 - no response given users n is equal to$n=$n= 3$$3 - no response given mu sub line segment x is equal to \mu_{\overline{x}}=μghx= 4$$4 - no response given users sigma sub line segment x is equal to$\sigma_{\overline{x}}=$σghx= 55 - no response given users Correct answers:  12500000$2500000$2500000  2625000$625000$625000  350$50$50 [Show More]

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