An experienced farmer says that the standard deviation for the number of lettuce plants that can grow in one acre is at most 59 plants. The soils department comes to
the farm and randomly selects 15 acres and finds that the number of lettuce plants
per acre has a standard deviation of 62 plants. Is there enough evidence to reject the
farmer's claim at a 10% level of significance? Make sure to state the hypotheses, p
value with interpretation and conclusion.

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step-by-step explanation:

the correct answer is c

0 and 5 minutes

step-by-step explanation:

given that one morning eight buses arrive late by the number of minutes given below:

0 8 2 6 9 2 0 7 8

write these in ascending order

0   0 2 6 7 8 8 9

in the afternoon two more buses arrive at the bus stop say by x and y minutes late.

total number of buses = 10

median = average of 4th and 5th after arranging in ascending order

since 4th entry is 6, the values of x and y should be below 6

also given 0 is the mode so either x or y or both should be 0 because then only 0 gets the maximum frequency and hence mode

thus we have

0 0 0 2 6 7 8 8 9 and another unknown entry which is below 6.

since median is 3.5, we have the unknown entry to be 5 only because then only median =( 2+5)/2

thus the after noon buses were late by 0 and 5 minutes.