Entries by Grace Wahito

Find a 98​% confidence interval for the mean mass of all spills with an elapsed time of 29 minutes.

February 27, 2020 in /by

Find a 98​% confidence interval for the mean mass of all spills with an elapsed time of 29 minutes. Interpret the result What is the confidence​ interval? round 3 decimals Interpret the result. 2.Choose the correct answer below. A. We are 98% confident that the interval will not contain the mean mass of the spill […]

 

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In a recent​ year, the scores for the reading portion of a test were normally​ distributed

February 27, 2020 in /by

In a recent​ year, the scores for the reading portion of a test were normally​ distributed, with a mean of 23.9 and a standard deviation of 5.2. Complete parts​ (a) through​ (d) below. ​(a) Find the probability that a randomly selected high school student who took the reading portion of the test has a score […]

 

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The ages​ (in years) of a random sample

February 27, 2020 in /by

The ages​ (in years) of a random sample of shoppers at a gaming store are shown. Determine the​ range, mean,​ variance, and standard deviation of the sample data set. 12,19,23,13,17,17,22,18,14,15   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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1)Use the frequency distribution to the​ right, which shows the

February 27, 2020 in /by

1)Use the frequency distribution to the​ right, which shows the number of voters​ (in millions) according to​ age, to find the probability that a voter chosen at random is in the given age range. Not between 18 to 20yrs old Ages of voters FrequencyFrequency 18 to 20 6.8 21 to 24 8.2 25 to 34 24.3 35 to […]

 

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