Suppose that the sittingback-to-knee length for a group of adults has a normal distribution with a mean of =22.5 in. and a standard deviation of =1.1 in. These data are often used in the design of differentseats, including aircraftseats, trainseats, theaterseats, and classroom seats. Instead of using 0.05 for identifying significantvalues, use the criteria that a value x is significantly high ifP(x or greater)0.01 and a value is significantly low ifP(x or less)0.01. Find theback-to-knee lengths separating significant values from those that are not significant. Using thesecriteria, is aback-to-knee length of 24.7 in. significantlyhigh?

Find theback-to-knee lengths separating significant values from those that are not significant.

Back-to-knee lengths greater than _ in. and less than

_ in. are notsignificant, and values outside that range are considered significant.

(Round to one decimal place asneeded.)

Using thesecriteria, is aback-to-knee length of 24.7 in. significantlyhigh?

Aback-to-knee length of 24.7 in.

is

is not

significantly high because it is

inside

outside

the range of values that are not considered significant.