Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. his sample size is 7 with a mean of 93.5. which of the following correctly depicts the z-statistic for this data?
0.28
0.36
1.98
2.63

Option 3rd is correct

1.98

Step-by-step explanation:

Using the formula:

where,

X is the sample mean, is the mean, is the standard deviation and n is the sample size.

As per the statement:

Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 with a mean of 93.5

⇒X = 93.5, n = 2 , and

Substitute these given values to calculate z;

Therefore,  the z-statistic for the given data is, 1.98

C. 1.98 on edu

Step-by-step explanation:

answer: ouch. thats difficult

step-by-step explanation:

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.