Question

Consider a value to be significantly low if its z score less than or equal to

minus−2

or consider a value to be significantly high if its z score is greater than or equal to 2.A test is used to assess readiness for college. In a recent year, the mean test score was

19.419.4

and the standard deviation was
4.54.5.

Identify the test scores that are significantly low or significantly high.Step 1

In the question the values are printed two times as 19.419.4. For convenience, the values are taken as below:

The mean test score for the college is 19.4 and the standard deviation is 4.54.

Step 2

*z-score:*

* **X* follows a distribution that has mean µ and the standard deviation σ. Then the *z*-score,

Step 3

For the low sign...

Tagged in

Q: 1. In a random sample of 15 CD players brought in form repair, the average repair cost was $80 and t...

A: It is given that the average repair cost (mean) is $80, sample standard deviation s is $14, the samp...

Q: Which statement regarding skewed distributions is FALSE? The "68-95-99" rule does not apply to skew...

A: The 68-95-99 rule is applicable only in normal distributions. So it is not applicable to skewed dist...

Q: Write the equation of the line that passes through the points (0, 1) and (− 1, 3). Explain your solu...

A: The equation of the line is given by, y = mx+c, where m is the slope and c is the intercept.

Q: Let x be the age in years of a licensed automobile driver. Let y be the percentage of all fatal acci...

A: Solution:(a) Draw a scatter diagram displaying the data.

Q: Oxygen demand is a term biologists use to describe the oxygen needed by fish and other aquatic organ...

A: Let X be the random variable, defined as the oxygen demand.Here, X follows normal distribution with ...

Q: How are r and r2 interpreted?

A: In this question, we have to explain how we interpret r and r2

Q: Rolling Two Dice If two dice are rolled one time, find the probability of getting these results A. ...

A: Hello there! There are more than 3 sub-parts in the question shared. According to our policies canno...

Q: Leah Peschel is the bottling department manager for a bottling company that produces various soft dr...

A: GivenNull hypothesis H0: µ1 = µ2Alternative hypothesis Ha : µ1 ≠ µ2Sample mean number of cola bott...

Q: Statistics Question

A: According to the provided information, the variable ‘x’ be age of the best actress winner and ‘y’ be...

Sorry about that. What wasn’t helpful?