simple random sample from a population with a normal distribution of 99 body temperatures has x overbarequals98.20degrees Upper

Question

3 years ago

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simple random sample from a population with a normal distribution of 99 body temperatures has x overbarequals98.20degrees Upper

F and sequals0.63degrees Upper F. Construct a 95% confidence interval estimate of the standard deviation of body temperature of all healthy humans. Is it safe to conclude that the population standard deviation is less than 1.50degrees Upper F?

Mathematics

1 answer:

Verizon [17] · Answer 1 · 2022-05-30T21:12:57+03:00

Verizon [17]3 years ago

7 0

Answer:

Step-by-step explanation:

Let x be the normal body temperature

X is N(99, sigma)

Sample mean x bar = 98.2 and s = 0.63

Margin of error = Z critical * 0.63 = 1.95 *0.63 = 1.2285

It is safe since 1.5 <1.96 critical value of z at 95%