1)q8.36 (b) 2)q9.8 ======= please help me with this (( in 20l subject )) the boo

Question

1)q8.36 (b)

2)q9.8

=======
please help me with this

(( in 20l subject ))
the book I study from is ( statistics:a first course by B.M.perles & J.E.freund)

9.7 To estimate the average daily production of chairs by a ST shop manager examined a random sample of 56 daily production repor a mean of 32.5 cha assert with probability of 99% about the maximum error? With the information provided in the preceding exercise, assume with probability of 95% about the maximum error? ts, o btain?n rs and a standard deviation of 2.9 chairs. What can the manager what can the manager 9.9A bakery wants to determine the average amount of honey used in a certain type 9.8 of honey cake. An examination of 64 honey cakes revealed that they contained an average of 8.0 ounces of honey, with ? 0.5 ounce. If 8 ounces of honey is used as an estimate of the actual mean number of ounces per cake, what can we assert ha maximum error

Explanation / Answer

8.36)
standard error = sd /sqrt(n) = 3/sqrt(30) = 0.54772

margin of error = z* standard error
for 95%
margin of error = 1.96 * 0.54772
=1.0735312

9.8)
maximum error = margin of error = t * sd/sqrt(n)
for 95% ,
df= n-1 = 55
t = 2.004
hence
maximum error = 2.004* 2.9/sqrt(56)
=0.7766

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