SOLUTION: 1.A sample of 36 students are drawn from the NUST student population, and their body weights are measured. Their results show a mean weight of 84 kg with a standard deviation of 1

Question 1181460: 1.A sample of 36 students are drawn from the NUST student population, and their body weights are measured. Their results show a mean weight of 84 kg with a standard deviation of 14.8 kg.
When constructing a confidence interval estimate for the single unknown population mean weight for the NUST student population, What will be the lower limit (LL) for this confidence interval estimate?
2.Due to the sharp increase in the prices of urban properties over the last five years, only a small percentage of new city dwellers can afford to buy their own property. According to a recent survey, only 22% of these new city dwellers can afford to buy their own property. An estate agency who wanted to verify this, considered a random sample of 200 recent city dwellers, and found that only 38 of them bought their property in town. Test at the 5% significance level whether the percentage has changed.
Compute the sample statistic ?
3.Due to the sharp increase in the prices of urban properties over the last five years, only a small percentage of new city dwellers can afford to buy their own property. According to a recent survey, only 22% of these new city dwellers can afford to buy their own property. An estate agency who wanted to verify this, considered a random sample of 200 recent city dwellers, and found that only 38 of them bought their property in town. Test at the 5% significance level whether the percentage has changed.
State the alternative hypothesis
4.A company which supplies ready-mixed concrete receives, on average, 6 orders per day. What is the probability that ten orders will be received during the next ten days?:
5.Due to the sharp increase in the prices of urban properties over the last five years, only a small percentage of new city dwellers can afford to buy their own property. According to a recent survey, only 22% of these new city dwellers can afford to buy their own property. An estate agency who wanted to verify this, considered a random sample of 200 recent city dwellers, and found that only 38 of them bought their property in town. Test at the 5% significance level whether the percentage has changed. Based upon the outcome of your test, What is the decision ?
6.A company which supplies ready-mixed concrete receives, on average, 6 orders per day. What is the probability that on any given day: No orders will be received

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