Complete Question
In a random sample of 13 microwave ovens, the mean repair cost was $90.00 and the standard deviation was $15.20. Using the standard normal distribution with the appropriate calculations for a standard deviation that is known, assume the population is normally distributed, find the margin of error and construct a 98% confidence interval for the population mean u. A 98% confidence interval using the t-distribution was (78.7,101.3). Compare the results. The margin of error of u is
Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The sample is 
The sample mean is 
The standard deviation is 
The lower limit of the 98% confidence interval is 
The upper limit of the 98% confidence interval is 
Generally the margin of error is mathematically represented as

=> 
=> 
Answer:
3/30 water
Step-by-step explanation:
3/5 water = 1 portion
x = 1/6 portion
x= (1/6 portion) (3/5 water) / 1 portion
x =3/30 water
Answer:
The answer is 1.
Step-by-step explanation:
If it is 5 or more, you round up. If it is 4 or less, you keep it the same.
Answer:
22 cm
Step-by-step explanation:
Answer: First option:
Angle C is congruent with angle X, angle D is congruent with angle Y, angle A is congruent with angle Z