Answer:
55 And 57
Step-by-step explanation:
55, 56, 57,
Answer: it’s correct tyy
Step-by-step explanation:
Given

This is a one-tailed test.


Since the p-value of the sample statistic (0.00383) is less that the significant level (0.025), we reject the null hypothesis.
Answer:
4
Step-by-step explanation:
Class width is said to be the difference between the upper class limit and the lower class limit consecutive classes of a grouped data. To calculate class width, this formula can be used:
CW = UCL - LCL
Where,
CW= Class width
UCL= Upper class limit
LCL= Lower class limit
From the table above:
For class 1, CW = 64 - 60 = 4
For class 2, CW = 69 - 65 = 4
For class 3, CW = 74 - 70 = 4
For class 4, CW = 79 - 75 = 4
For class 5, CW = 84 - 80 = 4
Therefore, the class width of the grouped data = 4
Answer:
k=1/3; k=-2/5
Step-by-step explanation:
