A random sample of size 150 taken from a population yields a proportion equal to 0.35.(a)Determine if the sample size is large enough so that the sampling distribution may be approximated by a normal distribution.(b)Produce the margin of error associated with 90% confidence.(c)Would the margin of error increase or decrease if we increase our confidence to 99%

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.