24. Bob draws a simple random sample from an original population where the standard deviation is known to be o = 13. The sample size is n = interval for the population mean µ. А. (22.368, 29.632) 85 and the sample mean turns out to be = 26. Find a 99% confidence В. (21.374, 28.441) С. (23.629, 30.837) D. (25.375, 26.984)

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24. Bob draws a simple random sample from an original population where the standard deviation is known to
85 and the sample mean turns out to be x
13. The sample size is n =
interval for the population mean u.
А. (22.368, 29.632)
be o =
26. Find a 99% confidence
В. (21.374, 28.441)
С. (23.629, 30.837)
D. (25.375, 26.984)
51, the sample
25. Bob draws a simple random sample from an original population. The sample size is n =
78, and the sample standard deviation turns out to be s
mean turns out to be x
14. Find the 95%
confidence interval for the population mean µ.
A. (74.062, 81.938)
B. (74.062, 83.948)
С. (74.062, 85.958)
D. (74.062, 87.968)
26. Bob draws a simple random sample from an original population. The sample size is n = 41, the sample
130, and the sample standard deviation turns out to be s =
6. Find the 99%
mean turns out to be x
confidence interval for the population mean µ.
А. (125.47, 130.53)
В. (126.47, 131.53)
С. (127.47, 132.53)
D. (128.47, 133.53)
27. Bob draws a simple random sample from an original population. The sample size is n =
59, and the sample standard deviation turns out to be s
61, the sample
4. Find a 95% confidence
mean turns out to be x =
interval for the population mean µ.
A. (57.976, 60.024)
В. (56.253, 59.757)
С. (58.005, 61.417)
D. (58.452, 59.661)
28. A simple random sample of size n = 51 is taken from a normally distributed original population. The
sample standard deviation is s = 27. Find the 95 % confidence interval for the population standard deviation ơ.
А. (22.591, 33.563)
В. (24.591, 35.563)
C. (26.591, 37.563)
D. (28.591, 39.563)
Transcribed Image Text:24. Bob draws a simple random sample from an original population where the standard deviation is known to 85 and the sample mean turns out to be x 13. The sample size is n = interval for the population mean u. А. (22.368, 29.632) be o = 26. Find a 99% confidence В. (21.374, 28.441) С. (23.629, 30.837) D. (25.375, 26.984) 51, the sample 25. Bob draws a simple random sample from an original population. The sample size is n = 78, and the sample standard deviation turns out to be s mean turns out to be x 14. Find the 95% confidence interval for the population mean µ. A. (74.062, 81.938) B. (74.062, 83.948) С. (74.062, 85.958) D. (74.062, 87.968) 26. Bob draws a simple random sample from an original population. The sample size is n = 41, the sample 130, and the sample standard deviation turns out to be s = 6. Find the 99% mean turns out to be x confidence interval for the population mean µ. А. (125.47, 130.53) В. (126.47, 131.53) С. (127.47, 132.53) D. (128.47, 133.53) 27. Bob draws a simple random sample from an original population. The sample size is n = 59, and the sample standard deviation turns out to be s 61, the sample 4. Find a 95% confidence mean turns out to be x = interval for the population mean µ. A. (57.976, 60.024) В. (56.253, 59.757) С. (58.005, 61.417) D. (58.452, 59.661) 28. A simple random sample of size n = 51 is taken from a normally distributed original population. The sample standard deviation is s = 27. Find the 95 % confidence interval for the population standard deviation ơ. А. (22.591, 33.563) В. (24.591, 35.563) C. (26.591, 37.563) D. (28.591, 39.563)
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