Question

Asked Jul 5, 2019

19 views

A normal distribution has a mean of 10 and a standard deviation of 10. What is the number such that 21% of the observations lie below it? Round your answer to the nearest tenth

Step 1

The given information is that the scores distributed normally with mean 10 and variance is 49. The standard deviation for the scores is 10. The random variable X denotes the observations. Given that the observations below the value *x* is 21%.

Step 2

Using *Z* table for finding the inverse cumulative function:

Step 3

From the *Z* tabl...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: Part b, c, d

A: Part b:Denote μ as the true mean breaking strength (after 24 hours) of the new bonding adhesive.The ...

Q: Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? ...

A: Part (a):The scatter diagram, along with the best fitted line (least-squares regression line) for th...

Q: the NHANES-Ill survey, the inçidence of urinary tract infections in adult women is 13,320 n per year...

A: Given incidence of urinary tract infections = 13.32%Nitride test for urinary tract infections sensit...

Q: The point on a normal distribution (mean equals 6 and standard deviation equals 9) that is greater t...

A: The given information is that the scores distributed normally with mean 6 and standard deviation 9.F...

Q: The number of unhealthy days based on the AQI ( Air Quality Index) for a random sample of metropolit...

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is unknown is give...

Q: Data were collected on the amount spent by 100 customers for lunch at a major Houston restaurant. Th...

A: It is given that the population standard deviation is $6, number of customers’ n is 100 and the con...

Q: Fuming because you are stuck in traffic? Roadway congestion is a costly item, both in time wasted an...

A: Hey, since there are multiple subpart questions posted, we will answer first three subparts. If you ...

Q: Students were asked, "How stressed have you been in the last week, on a scale of 0 to 10, with 0 ...

A: Histogram:Histogram is a bar graph that represents a frequency distribution.

Q: Determine whether or not sigma1 square is equal to sigma 2 square using a 5% significance level if w...

A: According to the given question, to test the hypothesis of H0: sigma 1 square is equal to sigma 2 s...