Answer: -34 and uh 34^5 btw that is 34 to the fifth power.
To find out the average score, all we need to do is to add all the scores and then divide the result by the amount of numbers we added. So in this situation it'll look like this:
(10.2 + 11.4 + 10.5 + 12.6 + 12.2 + 11.6 + 13.1 + 12.8) ÷ 8 =
= 94.4 ÷ 8 =
= 11.8
Answer: Marvin's average score was 11.8.
Answer:
b=50 central angle equal to the arc
Answer:
x = 66 degrees, y = 57 degrees
Step-by-step explanation:
180 - 123 = 57 = y
57 + 57 + x = 180
114 + x = 180
x = 66
Answer:
The mean run time is 300 minutes
Step-by-step explanation:
Null hypothesis: The mean run time is 300 minutes
Alternate hypothesis: The mean run time is not 300 minutes
Test statistic (z) = (sample mean - population mean) ÷ sd/√n
sample mean = 295 minutes, population mean = 300 minutes, sd = 20 minutes, n = 50
z = (295 - 300) ÷ 20/√50 = -5 ÷ 2.83 = -1.77
The test is a two tailed test. The critical value using a significance level of 0.05 is 1.96
Since the test is two tailed, the region of no rejection of the null hypothesis lies between -1.96 and 1.96
The test statistic (-1.77) falls within the region bounded by -1.96 and 1.96, fail to reject the null hypothesis
Conclusion: The mean run time is 300 minutes