According to a government agency, the average workweek for an adult in February 2018 was 34.1 hours. Assume the population standard deviation for the number of hours worked per week is 4.0 hours. A random sample of 35 adults worked an average of 34.8 hours last week. a. Do the results from this sample support the claim by the government agency? b. Identify the symmetrical interval that includes 82% of the sample means if the true population mean is 34.1 hours per week. a. Do the results from this sample support the claim by the government agency? Consider a probability of less than 0.05 to be small. The probability that the sample mean will be greater than 34.8 hours is. The result V support the claim by the government agency that the mean is 34.1 hours because this probability is V 0.05. (Type an integer or decimal rounded to four decimal places as needed.)

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According to a government​ agency, the average workweek for an adult in

February

2018 was

34.1

hours. Assume the population standard deviation for the number of hours worked per week is

4.0

hours. A random sample of

35

adults worked an average of

34.8

hours last week.

According to a government agency, the average workweek for an adult in February 2018 was 34.1 hours. Assume the population standard deviation for the number of hours worked per week is 4.0 hours. A random sample of 35 adults worked an
average of 34.8 hours last week.
a. Do the results from this sample support the claim by the government agency?
b. Identify the symmetrical interval that includes 82% of the sample means if the true population mean is 34.1 hours per week.
.....
a. Do the results from this sample support the claim by the government agency? Consider a probability of less than 0.05 to be small.
The probability that the sample mean will be greater than 34.8 hours is . The result
support the claim by the government agency that the mean is 34.1 hours because this probability is
0.05.
(Type an integer or decimal rounded to four decimal places as needed.)
Transcribed Image Text:According to a government agency, the average workweek for an adult in February 2018 was 34.1 hours. Assume the population standard deviation for the number of hours worked per week is 4.0 hours. A random sample of 35 adults worked an average of 34.8 hours last week. a. Do the results from this sample support the claim by the government agency? b. Identify the symmetrical interval that includes 82% of the sample means if the true population mean is 34.1 hours per week. ..... a. Do the results from this sample support the claim by the government agency? Consider a probability of less than 0.05 to be small. The probability that the sample mean will be greater than 34.8 hours is . The result support the claim by the government agency that the mean is 34.1 hours because this probability is 0.05. (Type an integer or decimal rounded to four decimal places as needed.)
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