Use the normal distribution to approximate the following. [7…
Use the normal distribution to approximate the following. [7 Points] 7) A telemarketer found that there was a 1% chance of a sale from his phone solicitations. Find the probability of getting 5 or more sales for 1000 telephone calls. Use the normal distribution to approximate the binomial distribution.
Read DetailsProvide an appropriate response. [2 Points] 4) What happens…
Provide an appropriate response. [2 Points] 4) What happens to the mean and standard deviation of the distribution of sample means as the size of the sample decreases? A) The mean of the sample means increases and the standard error stays constant. B) The mean of the sample means stays constant and the standard error increases. C) The mean of the sample means decreases and the standard error increases. D) The mean of the sample means stays constant and the standard error decreases.
Read DetailsConstruct the appropriate confidence interval. [8 Points Eac…
Construct the appropriate confidence interval. [8 Points Each] 16) A survey of 2450 golfers showed that 281 of them are left-handed. Construct a 98% confidence interval for the proportion of golfers that are left-handed. 17) The USA Today claims that 44% of adults who access the Internet read the international news online. You want to check the accuracy of their claim by surveying a random sample of 120 adults who access the Internet and asking them if they read the international news online. Fifty-two adults responded “yes.” Use a 95% confidence interval to test the newspaper’s claim.
Read DetailsThree elements may be applied to the stud-weld symbol:____.a…
Three elements may be applied to the stud-weld symbol:____.a. stud size, stud spacing, and the location of stud welds b. stud size, stud spacing, and the number of stud welds c. stud size, stud placement, and the location of stud welds d. stud size, stud placement, and the number of stud welds
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