I need help answering this question. A)0.065 B)0.000 C)0.1 D)0.100

I need help answering this question. A)0.065 B)0.000 C)0.1 D)0.100

Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation 20. Find Upper P9, which is the IQ score separating the bottom 99% from the top 91%.

of 112 randonly selected adults, 34 were found to have high blood pressure. Construct a 94% confidence interval for the true percentage of all adults that have high blood pressure

Scores on a SAT form a normal distribution of µ = 500 and σ = 100 1) What is the minimum score necessary to be in the top 20% of the SAT distribution? 2) find the range...

A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 15 adults are selected at random and the number who are satisfied is recorded. -Would...

The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample statistics from one experiment include 520 peas with 99 of them having yellow pods. Find the value of...

7. A certain group of test subjects had pulse rates with a mean of 80.2 beats per minute and a standard deviation of 11.5 beats per minute. Would it be unusual for one of the test subjects...

Top sales executives, Alissa and Emilia came up with kiwi passion fruit cookie company. The machine fills each package cookies so that they have an average weight of 32 ounces with a variance of 0...

Alondra , Lídia Co creators of quiadas inc claim that their facial blend will keep woman’s skin and healthy for at least 65 days. Alex ,advocate tested 15 bottles and found a mean of 63 days with...

estimated their power at between 3 and 7 kilotonnes of a certain explosive in 2009 and between 7 and 8 kilotonnes of the explosive in 2013. "The power of the country's bomb tests increased between...

I've been trying to remember how to solve this but I can't find it in my notes please help

construct 98% confidence interval. lower and upper bounderies needed

A newspaper reported on the results of an opinion poll in which adults were asked what one thing they are most likely to do when they are home sick with a cold or the flu. In the survey, 63% said...

mu = µ, standard dev = σ

Find the z-scores for which 3% of the distribution's area lies between −z and z.?

Find the probability and interpret the results. The population mean annual salary for environmental compliance specialists is about $60,000. A random sample of 40 specialists is drawn from this...

I know the forumla for the Z-score and the Raw-score, i'm just unsure of how to plug in. There three different students, but if you could just help me figure out one that owuld be helpful! Question: 3...

I'm having a bit of trouble with this question. So I know that I need to find the z-score, but after that i'm not sure how to fer the exact percentage? I know the formulas for the z-score and...

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 49.0 and 54.0 minutes. Find the probability that a given class period runs between...

The results of an examination are found to be normally distributed with a standard deviation of 15.0. If a student is selected at random, the probability is 0.0485 that his mark will exceed 85. The...